You should take a look at the file that contains the successfully added plugins:
\DX Settings\plugin_list_Audio_x64.txt
The Abbey Road Studio 3 plugin should be listed in there with the ID NARS.
TYPE=VST;NAME=Waves: Abbey Road Studio 3 Stereo;ID=NARS;SHELLID=NARS;PATH=C:\Program Files\VstPlugins\WaveShell1-VST 12.7_x64.dll
Note the actual file location. For me it is on my C drive, but perhaps yours is on a different drive?
Here are my Abbey Road entries in
plugin_list_Audio_x64.txt. Note there are two sets of entries, one set for
WaveShell1-VST 12.6_x64.dll and one set for
WaveShell1-VST 12.7_x64.dll. (Earlier this year I contacted Waves regarding the various WaveShell1-VST files on my system, and they told me which ones I could delete and which ones I should keep.)
TYPE=VST;NAME=Waves: Abbey Road Studio 3 5.1/Stereo;ID=NARE;SHELLID=NARE;PATH=C:\Program Files\vstPlugins\WaveShell1-VST 12.6_x64.dll
TYPE=VST;NAME=Waves: Abbey Road Studio 3 7.1/Stereo;ID=NARG;SHELLID=NARG;PATH=C:\Program Files\vstPlugins\WaveShell1-VST 12.6_x64.dll
TYPE=VST;NAME=Waves: Abbey Road Studio 3 Stereo;ID=NARS;SHELLID=NARS;PATH=C:\Program Files\vstPlugins\WaveShell1-VST 12.6_x64.dll
TYPE=VST;NAME=Waves: Abbey Road Studio 3 5.1/Stereo;ID=NARE;SHELLID=NARE;PATH=C:\Program Files\vstPlugins\WaveShell1-VST 12.7_x64.dll
TYPE=VST;NAME=Waves: Abbey Road Studio 3 7.1/Stereo;ID=NARG;SHELLID=NARG;PATH=C:\Program Files\vstPlugins\WaveShell1-VST 12.7_x64.dll
TYPE=VST;NAME=Waves: Abbey Road Studio 3 Stereo;ID=NARS;SHELLID=NARS;PATH=C:\Program Files\vstPlugins\WaveShell1-VST 12.7_x64.dll
I also have two sets of Abbey Road plugins when I load from BIAB. Only the first entry of each set will load, so the first
Waves Abbey Road Studio 3 Stereo (highlighted) loads, but not the second (nothing happens when I click on it).