Good question on how to trigger it. I noticed it after running a combustion setup without any changes on it. After you wrote that you can't reproduce it, I tried to isolate it. After thinking I went insane because I didn't manage to isolate it, I ran the original script again. It didn't trigger it anymore. So, either an update fixed it or I somehow managed to trigger a weird edge case (maybe the microSD card even). So, for now even I can't reproduce it, so I will close it for now.