Problems with External Memory Card in macOS Big Sur

I am using Final Cut Pro X and when I added my external memory card to import files - it did not show up in the Finder. I removed it and received an alert it wasn't ejected properly. I put it in again and had to double click on it from the desktop in order for FCPX to recognize it.

After I was done, when I went to delete the files from the memory card, there is no double-click menu option to move files to trash from the Finder or from the desktop.
it still doesn't work, updated yesterday to Big Sur. SD card doesnt show up in the finder's sidebar, you can only show the SD Card on the desktop if you chose to show external drives on the desktop (preferences in finder, 1st Tab)

Needless to say that I absolutly regret installing Big sur! All of you who have not updated yet and if you're working with FCPX, Luminar and alike - stay away from an upgrade to Big Sur.
Problems with External Memory Card in macOS Big Sur
 
 
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