SD Card remains "empty"

Probably not a solution; I have a same situation. Some 32g microsd class 10 are incompatible with some clip+'s. I know because I have the same issue. I have a 2 clip+'s and a 4, 8, 16g work on both. The 32 works on one, but not the other.

Don’t know why. What brand is your card? Maybe we got the same messed up issue.