Recently, on my 2019 MacBook Pro (MacOS 11.2.3), when I insert an SD card into my external Thunderbolt card reader, the SD card doesn’t appear in the Finder, and isn’t available to any apps. However, if I launch Disk Utility (or into Terminal), I can see that the card is mounted.
In an attempt to resolve this, I’ve relaunched the Finder, rebooted the computer, and tried the reader in different ports. Neither Safe Boot nor deleting the com.apple.finder.plist worked. I also tried different cards and the exact same thing happens.
Any thoughts on resolving this, as I need to be able to import/ingest image images from the SD card?