Last flight I took 18 photos. Only 1 was saved to the card. All 18 showed in the Pilot app. Put card back into the bird and let it idle for a few min. Still nothing on the card.I'm properly shutting the bird down. Today I go to format the card in the pilot app. I get the error "unable to format" I stick the card in my computer. Unable to format. Weird. So I guess the card is no good. I have 1 other micro SD card. I insert into the bird and get Invalid SD. Wtf. Is it possible my DJI issued card is toast and my other card is not compatible? My back up card is only a 2g PNY. But I wanted to see if it was the card or the bird.