Article 5RGZF Ubuntu 20.04.3 LTS: Paste Function Greyed Out = Dropbox Fail

Ubuntu 20.04.3 LTS: Paste Function Greyed Out = Dropbox Fail

by
kajensen
from LinuxQuestions.org on (#5RGZF)
Hello All,

Running Ubuntu 20.04.3 LTS:

Background to current problem (which may or may not relate):
Desktop objects sometimes disappear; re-appear on re-boot.

My question is: Is there a solution other than OS re-install?

Details of problem:

All folder/file permissions in properties are read/write.
(1) IF I create a Test folder:
(2) I CAN cp that folder to desktop.
(3) I CANNOT cut/copy any file/folder to any location because "paste" is greyed out.
(4) I CAN drag/drop a file/folder to another folder but I CANNOT drag/drop that object out of the folder, nor paste. That object remains "in jail" in that folder.
(5) Dropbox fails because I CANNOT cut/copy/drag and drop any object into it. To check that this was not a Dropbox issue, I purged Dropbox from terminal, re-installed and, ditto, same problem. Needless to say, when I ran Ubuntu MATE from a virtual machine, none of the above problems occurred, including with Dropbox.

So it seems I have a corrupted OS. The question is, What is corrupted and can it be repaired?

I'd be grateful for any solution other than wiping and starting over. I have a Brother monolaser multi-function printer which is very difficult to install, a driver for every function via CLI, so I'm really trying to avoid a re-install.

Many thanks for any suggestions.

P.S. I am NOT querying about a Dropbox problem but an OS problem which happens to be fatal to Dropbox functionality.latest?d=yIl2AUoC8zA latest?i=czlwiZGf1VE:XgAvMEemkDE:F7zBnMy latest?i=czlwiZGf1VE:XgAvMEemkDE:V_sGLiP latest?d=qj6IDK7rITs latest?i=czlwiZGf1VE:XgAvMEemkDE:gIN9vFwczlwiZGf1VE
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