Nautilus file manager - doesn't display new files

Note (10). I assume other than the listed abuse, you are being gentle with a simplified setup. I haven’t experienced problems for months because I treat my Jetsons well other than sending them out to users. I have even exchanged Jetsons, with the same result - problem for user, no problem in my hands.

Any thoughts on hardening L4T’s interaction with removable FAT USB drives?