Why are some of my music tags deleting themselves?

[Android Central Question]

Some of the tags on my music files have cleared themselves. I'm not sure why it does this, but it only happens with a few albums- I have a few hundred albums on a 64 GB micro SD card that I put in my phone and only 12 of them have this issue. The title of the song reverts to what the mp3 file is called, and all of the other tags change to <unknown>. I'm using a Moto X Pure running Android 7.0, I'll try to add pictures if I can figure out how, this is my first time posting here lol. Thanks