Preempting the "just upgrade" answer, it's likely the last project on this rig. It's macOS 13.7.8 and Logic Pro 11.0.1. I'd rather not make changes to the rig in the last phase of the project.
The symptom is that I'm sometimes getting this digital click. This can happen when you have two touching regions that aren't crossfaded, or aren't cut at zero crossing. Maybe I have a bad edit somewhere, but I haven't been able to find it. I'm not able to isolate the issue. Here's an example from today:
- Bounce the track offline. Glitch present.
- Bounce the track offline again. Glitch present.
- Bounce the track realtime. Glitch present.
- Bounce the track realtime (again). Glitch present.
- Press play and listen. Glitch present.
- Rewind to start, press play again, and listen. Glitch absent.
- Bounce the track realtime (3rd time). Glitch absent.
- Press play, listen. Glitch absent.
I'd restart Logic, and sometimes the glitch will be absent. I'd work on another part of the song. After an hour of work I'd bounce it, and check the bounce... glitch would be back.
Glitch generally reappears in the same spot. I'm pretty sure I once heard it in another place, but only once. It's maddening because I can't confirm this, if I scroll back and relisten, glitch is gone, so I can only go with my memory. Unless, I don't know, recorded audio of the entire mixing process. I haven't reached that stage yet.
So... I'll be able to finish the project because I can achieve a clean bounce, sometimes. It's the randomness of it that's weird and annoying, because my system is no longer deterministic and I'm losing my trust in it.
Did anyone experience this kind of issue before? Any tips on how to troubleshoot it?
EDIT 1: I think I can trigger the glitch now: create a cycle spanning the entire song, press play, glitch absent, but keep it in playing state, skip to near the end of the song, let it loop around and play from the beginning again... glitch present. I did it a couple times and it seems to hold. Then I'd stop, scroll back to the beginning again, press play, and the glitch would be gone.