The BUG I got from Firmware Ver. 1.21 for X-T10 of June 9 2016 is still there!
Every time I put in a card in the camera the gamera give this message if I don't take out the battery!
If I take out the battery and put i back everything i normal.
I've over the weekend and yesterday used the camera for at least 300 Pictures (RAW+JPEG-fine), an everyting is OK.
Today I did FORMAT these 2 cards with PC and then in the camera. It doesn't matter whitch camera I format the card in, the X-T10 give this Message unless I take out the battery, and the X-T1 don't give this message anytime.
Fujifilm (if you read this): I don't care if I'm the only one who got this BUG from Firmware Ver. 1.21, but this BUG started immediatly after the Upgrade of June 9 2016 for X-T10.