Corrupt files/ CFAST card crashed?

Hi Guys,
I did a project on two Transcend CFast 2.0 CFX650 256GB. I played them in my Ursa Mini Pro, but when I tried to copy them to my MacBook Pro, I could copy the file but couldnt open it. I can see the tumbnail, but can't import in Premiere Pro or Finder or VLC. I shot it in 4K 422.
The other card is even worse, it won't connect to my macbook pro (it was mac foramtted in the camera) and when I put it back in the camera, it said it needed to be formatted.
Any ideas?
I did a project on two Transcend CFast 2.0 CFX650 256GB. I played them in my Ursa Mini Pro, but when I tried to copy them to my MacBook Pro, I could copy the file but couldnt open it. I can see the tumbnail, but can't import in Premiere Pro or Finder or VLC. I shot it in 4K 422.
The other card is even worse, it won't connect to my macbook pro (it was mac foramtted in the camera) and when I put it back in the camera, it said it needed to be formatted.
Any ideas?