I think I found a bug (unless it’s user error), and a solution in case anyone runs into this issue:
Problem:
I had a nice pattern going and wanted to record some bass. The record buffers weren’t long enough, so I enabled dynamic recording. Suddenly all my tracks were quiet, they didn’t even switch to the play icon when I hit play (except the thru-machine on T7)!
Solution:
Turns out I could fix it by going into audio edit mode (AUD) and preview a slice (FUNC+YES). From then on, the track played as normal. Did this to all the other tracks too, and boom! Back to normal.
Edit: A quicker solution is to save and reload the project after changing memory settings, if you have lots of samples in the static sample pool (Thanks @Clancy!)