I can no longer add jamstix to a track. Now I know it won't tempo lock, but I can use it as a simple drum machine. I get an access violation
You must be talking about inside PG.....
I use JS on occasion, but only in Sonar. And it tracks tempo perfectly. I've even used it to play a drum midi part created in BB/RB.... on occasion.
Herb, my jamstix won't open in Studio one either. It is corrupted somehow, it used to work in both. I don't use the tempo lock, just the drum machine engine.
It's not a big deal, since I don't program my drums anymore, mostly use midi or RDs. So I have been using EZDrummer more often. Just bugs me when something breaks down
Are you up to date with JS v3.6.1? Are you using the 64Bit or 32bit?
Otherwise, I don't use it in RB for the known reasons, but it was my fall back drum set, well at least prior to EZD2 in Reaper.
I have both 32 and 64, I have the latest. That is when it stopped working.