As i dont have a idea atm, best check this thread about
black icon on 3DS to find a solution. My only idea at the moment :
- Run a file and sector check which also repairs found errors. On Windows, right klick the drive, go to tools and run the check. I recommend in Powershell to run
chkdsk X: /r
(X> driveletter) to see in detail whats going on.
- Update Luma and the 3DS system to latest firmware
- If you have unistore installed, uninstall the black icon games and reinstall them.
- Else, use Rosalina to switch the Homebrew Launcher to Health and safety app. Or use godemode9 to inject it to it. Then run in HBL the FBI app to reinstall them.