I’m just sequencing.
Start AudioBus.
Place SampleTank in the input. Set the four parts to channels 1-4. Activate them.
Put Cubasis in the AudioBus output slot. Create a project with one audio track receiving from AudioBus/SampleTank. Create 4 midi tracks with no instrument, no input midi send to virtual midi channels 1-4.
Create a 4 bar region for each track. Set grid size to 1/16. In the first region draw some notes.
Begin loop playback. In another region draw some notes. Listen for the stuck notes. Try to add another region. More stuck notes.
I don’t know if the issue is in Cubasis or SampleTank. But Cubasis was the latest to update.
Thank you for looking at it.