Moved MicroSD Card from M8 to MXPE, MXPE reporting it is corrupted

I just got my MXPE in the mail this morning and have moved my MicroSD card from my HTC One M8 to the MXPE. I can access the card still from the old M8 and TWRP on the MXPE, but Android reports "Damaged SD card - SD card is damaged. Try reformatting it." from the MXPE. I did a Nandroid on my M8 to SD so I can restore apps with Nandroid Manager, so I'd rather not have to wipe it. Any ideas?

TL;DR: Known and verified working SD card reports as damaged and won't mount.