Something in Mp3tag is causing ; to change to \\.
I have tested using all the automatic actions and nothing causes this. This issue also does not happen to all my music. What happens is that it changes ; to \\ on the Artist and Album artist field as well as my custom Vocals field. In the Artist and Album Artist field it only changes ; to \\ but in the vocals field it changes, to give an example "Mei Ayakura; Tsubaki Ichimatsu" to "Mei Ayakura" completely removing the ; and anything after it.
I do not want Mp3tag changing my tags on its own. I do not know why but I did not ask it to do this. It only changes some albums but not all. I went through and changed all the \\ back to ; but recently found out that everything that I changed went back to \\ again.
This issue is driving me crazy and any help would be appreciated.