hmm, that should only happen when theres no appropriate tracks to play. Which theme did you have selected?

I also had that as well today, was just using vanilla music. Was over a few hours

I've done a few days of testing on this one and I can't seem to replicate it. If you've a modlist to post that would help a bit. I'll keep an eye on it.

I had this too, seems to have happened when I loaded my game up then had to go do other things and forgot about it - left it running overnight while paused and came back to a "no tracks left" error spam. Kinda wierd effect but is there a backup bit of code to figure out how to restart the tracklist? I reloaded my game and it fixed the error overflow so not a huge deal just an "out there" circumstance lol