Hi @Aramid , sorry for late reply and thank you for logging this. I tried playing your project obeisant stamp.zip (2.4 MB) and focusing on track Midi 10, but cannot reproduce the issue.
First of all, using FAD and CUT on Synths and MIDI instruements (as explained in the manual) is same as using OFF, which is a simple Note Off. Those mean different thing for Sample Instruments, where they fade or cut the audio. Does the issue happen if you use OFF instead of FAD in this case?
Secondly, I am guessing it an issue with hanging note/voice, so when there is Note Off received, it plays the hanging note, which isn’t played all the time because of voice limit on the synth itself (S2 VAP synth in your project is set to Polyphony = 1). This is my guess, since I cannot reproduce the issue.
Does it happen when you Mute all other tracks and only play Track 10?
I cannot find Pattern 24/25 in your project.
Are you doing anything else or even touching the Tracker while it’s playing and before the bug occurs? Maybe another interaction is triggering the bug?
Please read How to report bugs : and don’t report multiple bugs under one report / topic. These are definitely separate topics.
Sorry you’re experiencing issues with the Tracker and thanks for your support!