I have a similar hard drive issue ? When I exit a game being played from the hard drive and try to go back in to play another it will not recognize the hard drive ? I can stick a flash drive in the empty usb slot (leaving the drive in the other) reboot then pull the flash drive and reboot again...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi