My thumb drive worked fine for the last year, but after upgrading to Catalina, I no longer can develop from the thumb drive. I've gone in with root and ensured permissions are correct on the drive/folder. I can edit, open, and save files but sometimes Word and Excel require a "save as" and overwrite option to the same drive. I can initialize C++ projects with Xcode to the drive, but editing them after initial creation is a hard stop. I now have to develop from desktop only to be able to edit C++ files.
