Sorry, what do you mean by "fix it so that albums aren't split into multiple albums via artist?"
FYI: My go to tag editor has been Mp3tag for decades, Mp3tag - the universal Tag Editor (ID3v2, MP4, OGG, FLAC, ...)
It supports batch tag-editing of ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis...