My music library includes files with Funky Unicode Names and I have no idea if it's Android, KDE/Dolphin, or the SD card but it regularly eats entire albums and doesn't show them in the media library nor file browsers even though the files exist.
I mention KDE because as far as I remember this didn't happen on Windows. I'll have to try and copy them via MTP on it. MTP transfers of these cursed files always fail on Dolphin.
Seems like it is indeed Android 13. I tried this same album on an Android 7 (MIUI 11?) phone I have around and while it absolutely cannot display the album titles, it does show the files and can interact with them. Android 13/ColorOS 4.0 cannot.
I yoinked the SD card from the ColorOS phone and the files Are There. The OS just can't see'm.
Oh yeah, forgot to mention, this only happens on external storage.