Korean changed to question marks

[hhharkness]

Several, but not all, tracks that have Korean (and one with Chinese) in the title/artist/album are being changed to question marks when I sync with my phone. At first I thought this was a GMMP issue, but according to the GMMP dev:
"gmmp is correctly reading the tags, your tags have just been changed to ??????  so musicbee or whatever is syncing is editing the tags when transferring it over to your device"

[hhharkness]

Bump since there hasn't been a reply in over a year, this is still an issue... the affected songs still maintain the correct path and file name, it seems it's just the tags being affected by having non-english changed to question marks and also by having the album artist set to whatever the artist is set as and the album art removed.