An update on this.

I've never really gotten to the bottom of what was happening, but I did some more experimenting involving lots of trying to find out why BiaB was not recognising VSTSynthFont64 as a valid VST, without any convincing conclusion.
However, doing lots of trial VST scans, many of which resulted in crashed BiaB and removed VST exclusions reappearing, even after saving, exiting and restarting BiaB, looking into the flash message logs and trying to see what was changing, I tried removing another Synth/tool location (SynthFont2) from the scan, obscuring the VSTSynthFont64 that was giving the problem by appending a .bk and ensuring that BiaB looked at the copy in its own bb/Data/libx64 folder. That now was recognised and worked. I then obscured it similarly and copied an unobscured new version also into the bb/Data/libx64. I tried again and again it recognised it and used it.

I'm now able to set VSTSynthFont64 as the VSTi/DXi Synth in the MIDI/Audio setup windows and things now work as they should. The default synth works, I don't get two instruments on tracks with plugins.

I attach extracts of before and after Flash Message logs if anyone at PGM thinks it's worth digging further.

Oh good grief ... even text files are blocked :-(

Quote:
Flash Log, fail extract:

Bootup was optimal, set to fast [2022.918.0, 02/03/2022 18:47:54]
Bootup time in milliseconds =2,341 [2022.918.0, 02/03/2022 18:47:54]
Time to scan unknown VST plugins = 3 ms [2022.918.0, 02/03/2022 18:47:54]
Time to scan known VST plugins = 6 ms [2022.918.0, 02/03/2022 18:47:54]
Time to scan AU plugins = 0 ms [2022.918.0, 02/03/2022 18:47:54]
Time to scan ALL plugins = 9 ms [2022.918.0, 02/03/2022 18:47:54]
Time to Count Plugins in ms =142. Plugins counted=21 [2022.918.0, 02/03/2022 18:47:54]
Scanning for plugins... [2022.918.0, 02/03/2022 18:47:54]
**** New Session started at : 02/03/2022 18:47:54
Error: Could not connect to plugin (C:\Program Files\VSTPlugins\VSTSynthFont64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\wasapi64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\vorbisfile.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\vorbisenc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\vorbis.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\sfArkDLL.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\ogg.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\MACDll.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libvorbisfile64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libvorbis64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libmp4v2x64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libmp4v2.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libFLAC64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libFLAC.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libfaac.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\lame_enc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\lameDLL64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\faaclib64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\VirtualMIDISynth\bassmidi.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\VirtualMIDISynth\bassenc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\VirtualMIDISynth\bass.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Kontakt\REX Shared Library.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Kontakt\REX Shared Library 64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Creator Tools\qtANGLE.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Creator Tools\d3dcompiler_47.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (F:\Samples\VirtualMIDISynth\bassmidi.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (F:\Samples\VirtualMIDISynth\bassenc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (F:\Samples\VirtualMIDISynth\bass.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:46:57]
Error: Could not connect to plugin (C:\Program Files\VSTPlugins\VSTSynthFont64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\wasapi64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\vorbisfile.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\vorbisenc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\vorbis.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\sfArkDLL.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\ogg.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\MACDll.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libvorbisfile64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libvorbis64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libmp4v2x64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libmp4v2.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libFLAC64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libFLAC.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\libfaac.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\lame_enc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\lameDLL64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\SynthFont2\faaclib64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\VirtualMIDISynth\bassmidi.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\VirtualMIDISynth\bassenc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (C:\Program Files\VirtualMIDISynth\bass.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Kontakt\REX Shared Library.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Kontakt\REX Shared Library 64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Creator Tools\qtANGLE.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (F:\Samples\Native Instruments\Creator Tools\d3dcompiler_47.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (F:\Samples\VirtualMIDISynth\bassmidi.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (F:\Samples\VirtualMIDISynth\bassenc.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Error: Could not connect to plugin (F:\Samples\VirtualMIDISynth\bass.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:43:15]
Bootup was optimal, set to fast [2022.918.0, 02/03/2022 18:40:57]
Bootup time in milliseconds =2,278 [2022.918.0, 02/03/2022 18:40:57]
Time to scan unknown VST plugins = 3 ms [2022.918.0, 02/03/2022 18:40:57]
Time to scan known VST plugins = 6 ms [2022.918.0, 02/03/2022 18:40:57]
Time to scan AU plugins = 0 ms [2022.918.0, 02/03/2022 18:40:57]
Time to scan ALL plugins = 9 ms [2022.918.0, 02/03/2022 18:40:57]
Time to Count Plugins in ms =140. Plugins counted=21 [2022.918.0, 02/03/2022 18:40:57]
Scanning for plugins... [2022.918.0, 02/03/2022 18:40:57]
**** New Session started at : 02/03/2022 18:40:57


Quote:
Flash Log, works extract:

The MIDI THRU part played by you on MIDI keyboard (& QWERTY keyboard wizard) will now use the MIDI Driver DURING PLAYBACK (not a DxI synth). Note: If using ASIO, this setting is ignored [2022.918.0, 02/03/2022 19:02:57]
_CLTREEL.STY is a RealTracks style that is available to sub for this MIDI style, with better sounds. Click here to load the style (or Press RealTracks button- Find Replacement to load it in or change options). [2022.918.0, 02/03/2022 19:02:12]
The MIDI THRU part played by you on MIDI keyboard (& QWERTY keyboard wizard) will now use the MIDI Driver DURING PLAYBACK (not a DxI synth). Note: If using ASIO, this setting is ignored [2022.918.0, 02/03/2022 19:01:30]
Bootup was optimal, set to fast [2022.918.0, 02/03/2022 19:01:20]
Bootup time in milliseconds =2,660 [2022.918.0, 02/03/2022 19:01:20]
Time to scan unknown VST plugins = 2 ms [2022.918.0, 02/03/2022 19:01:19]
Time to scan known VST plugins = 7 ms [2022.918.0, 02/03/2022 19:01:19]
Time to scan AU plugins = 0 ms [2022.918.0, 02/03/2022 19:01:19]
Time to scan ALL plugins = 9 ms [2022.918.0, 02/03/2022 19:01:19]
Time to Count Plugins in ms =113. Plugins counted=21 [2022.918.0, 02/03/2022 19:01:19]
Scanning for plugins... [2022.918.0, 02/03/2022 19:01:19]
**** New Session started at : 02/03/2022 19:01:19
The MIDI THRU part played by you on MIDI keyboard (& QWERTY keyboard wizard) will now use the MIDI Driver DURING PLAYBACK (not a DxI synth). Note: If using ASIO, this setting is ignored [2022.918.0, 02/03/2022 18:58:37]
Error: Could not connect to plugin (F:\bb\Data\libx64\ZipLib64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:58:15]
Error: Could not connect to plugin (F:\bb\Data\libx64\Ptw2^E.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:27]
Error: Could not connect to plugin (F:\bb\Data\libx64\portaudio_x64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:27]
Error: Could not connect to plugin (F:\bb\Data\libx64\MediaInfo.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:27]
Error: Could not connect to plugin (F:\bb\Data\libx64\lic0764.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\libsndfile64bit.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\libmediatoolsXPx64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\libmediatoolsx64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\libfastdsp.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\gp5.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\fretlightLibx64.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\elastiqueHarmony.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\dllelastiquePro3.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\dllelastiquePro.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\BBWRES2.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\bbwdll25.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Error: Could not connect to plugin (F:\bb\Data\libx64\bbwdll24.dll). Reason is unknown. It is possible that this is not a VST 2 plugin, or it is not installed properly. [2022.918.0, 02/03/2022 18:57:26]
Bootup was optimal, set to fast [2022.918.0, 02/03/2022 18:56:35]
Bootup time in milliseconds =3,760 [2022.918.0, 02/03/2022 18:56:35]
Time to scan unknown VST plugins = 3 ms [2022.918.0, 02/03/2022 18:56:33]
Time to scan known VST plugins = 6 ms [2022.918.0, 02/03/2022 18:56:33]
Time to scan AU plugins = 0 ms [2022.918.0, 02/03/2022 18:56:33]
Time to scan ALL plugins = 9 ms [2022.918.0, 02/03/2022 18:56:33]
Time to Count Plugins in ms =112. Plugins counted=21 [2022.918.0, 02/03/2022 18:56:33]
Scanning for plugins... [2022.918.0, 02/03/2022 18:56:33]
**** New Session started at : 02/03/2022 18:56:33


Sorry that's so messy, but my patience is exhausted.


Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
.