It works here, see below.

https://www.dropbox.com/scl/fi/f24rlwkyfa8s2wljksefx/demo.SGU?rlkey=9v840a17ichnu11sv72ssusp2&dl=0

Try this:
Assuming there is no natural decay here is what I would do.

1-get the instruments to play like you want using the hold settings,that is
Bar 1--------------Bar 2--------------Bar 3
1----2----3----4 - 1----2----3----4 - 1...etc
Dm...-----Em...-----------------------C
2-generate the song.
3-freeze all tracks
4-unfreeze the drum track
5-add your fills where you want them
6-generated the song - note this will only generate the drum track and not the frozen tracks

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware