From here:
Date:
2025-09-24
Version:
3.31d
Status:
Beta mp3tagv331d-x64-setup.exe
32-bit mp3tagv331dsetup.exe
3.31d (2025-09-24)
FIX: MP4 gnre atom for GENRE used type identifier that was incompatible with Apple Music so that "Unknown Genre" was displayed instead of the actual genre (since v3.31b).
FIX: MP4 fields TOTALTRACKS and TOTALDISCS were not written, if accompanied TRACK and DISC were not changed (since v3.31b).
3.31c (2025-09-04)
FIX: runtime e…
I'm not completely certain, but I don't believe that the 'Split field by separator / Tag-Feld aufteilen' separator has ever accepted multiple separator characters in the way that you used it.
The documentation says:
This action type splits the content of a tag field into multiple separate tag fields based on a given separator character .