Funny I seem to be having the same issue. No matter if I change pattern length from 16/16 to 64/64 x 1 yes.
I place trigs on say track 1 and start the sequencer or even if the sequence is running and it now just stops and doesn’t keep looping.
Sorry If this is a stupid noob question / I’ve only had an hour or two on it while I’m learning the OT (too much and my head WILL melt)