i passed one year to search where that problem came from in my music manager (helium music)
When a mp3 file came with the tag "COVERART" (see in id3 tag from windows properties), my music manager software fails and crashed whereas i always use mptag to clean my tags.
but, i just discover now why.
The feature "remove cover" of mp3tag forgets to remove the field COVERART (and another one i can't see the name, sorry)
Even, when i upload a new cover art album with mp3tag, this two fields are not updated , why ?
thanks for help please.