I can't find the same in any of my testing (even when actually crashing during testing). Does it have anything to do with using CommonAPI2? I've never used that extension, and don't really know what it does.

I suspect the problem lies elsewhere. I can't find/see anything obvious that would cause it, and I'm not using any particularly fancy functionality. Let me know if you find anything further.

I give it a test run by commenting out all logging stuff in the logging.lua - it's very hard to find the culprit.

Did commenting out the mod logging help? I tried further but can't find anything resembling what you're experiencing.

No, the culprit seems to be another mod, as mentioned here:
https://www.transportfever.net/index.php?thread/15769-bko-mods-mainly-road-vehicles-occasionally-other-stuff/&postID=360027#post360027

You can close this discussion, or let me know if I should close it.

Thanks for the follow-up, I'll close it.