I think you are most likely correct. However, there could also be a slight bit of debris in the slot keeping the connection from being made. I'd check both slots for that.
gvarner wrote:
I just got a warning from my D7200 that the card in slot 2 may be damaged and to replace it. I did some experimenting, switched the cards around, one card, both cards, couldn’t get it to repeat the warning. Both cards work fine. I’m thinking that the card in slot 2 wasn’t seated all the way. Your thoughts?