Thanks for the help. I have checked all the points above.
I have got a bit further on way now.

It seemed to be the AutoHotKey that got stuck in the “User Account Control”.
So now I am able to create the RT & RD lists.
And to communicate between BIAB and Reaper for some functions eg. Start, stop, regenerate… works fine.

But I still have problems trying to import the tracks.

It worked once for one style (RT & RD) but not for another styles and only when I imported the tracks one by one.
Then I was able to import each track both audio and midi to reaper. If I use only midi styles (midi instruments) it works fine.
But when I try it again with the same song same style (RT & RD) it no longer works and it is the same problem with other styles.

Reaper hangs/crashes when trying to import the track from BIAB. It gets quite a bit on the way, I can se the audio wave building up in Reaper, but then it crashes with the message... It works fine with the drum track but not for any of the other RT tracks.

... “Building Peaks (no response)”



Also when I am trying to "Browse folder for Reapeaks" it still crashes with the log:

---------
Error: Biab track injector GUI.lua:3015: attempt to call a nil value (field 'JS_Dialog_BrowseForFolder')

Stack traceback:
ReaTrak_Core.lua:93: in field 'JS_Dialog_BrowseForFolder'
Biab track injector GUI.lua:3015: in function 'reapeaks_folder_btn_click'
Class - Button.lua:138: in method 'onmouseup'
ReaTrak_Core.lua:887: in field 'Update'
ReaTrak_Core.lua:440: in field 'Main_Update_Elms'
ReaTrak_Core.lua:307: in function <...rs\hakan\AppData\Roaming\REAPER\Scripts\ReaTrak_Core.lua:303>
[C]: in function 'xpcall'
ReaTrak_Core.lua:303: in function <...rs\hakan\AppData\Roaming\REAPER\Scripts\ReaTrak_Core.lua:302>

Lokasenna_GUI:
v2.16.8
Reaper:
6.68/x64
Platform:
Win64

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