Just purchased this R5 Mk ii yesterday. Put in two new memory cards and formatted them. Lexar Professional 256 GB CF Express and Lexar 128 GB Professional SD card. When I turned the camera off and then back on it said my SLOT 1 Card was full but I hadn't even taken a photo. So i turned it off but it was frozen. I pulled the batter and turned it back on this time it worked. I took 100 or so photos. Turned the camera off. 10 minutes later turned it back on and it said SLOT 1 was full again. I took the cards out and tried to import what I had taken and neither cards will import. It is saying the files are corrupt. I upgraded the firmware to 1.01 tried several times different configurations, only using 1 card slot using both tried different cards I have. Every photos that is taken is corrupt. I can see them in the preview screen on the camera but will not import on the Mac Studio. I have been photographing professionally for 20 years. Have 4 other canon cameras. Tested them with the same cards they all work and import the images fine. Not sure what to do but take the camera back and send it in to get fixed. Which is terrible that I just spent $6000.
