I found a Sandisk Ultra 64GB full size SD card. This one is the same as the Lexar. Doesn't detect it, but also doesn't mess up the video.
Sadly after a few tries, the Sandisk now also causes the video to garble. I really hope this isn't a hardware problem
Sadly after a few tries, the Sandisk now also causes the video to garble. I really hope this isn't a hardware problem