readonly archive allows user to initiate deletion of file(s), and never completes the deletion
I opened an archive. I tried to delete a file. 3 A window displaying a busy signal appeared and never disappeared. 4 After a few minutes I noticed that the main file-roller window contained the words . . 'read-only'.
Oh, and after I aborted the deletion - by clicking 'cancel' - the program hung and I had to kill it with xkill. Dear me!
When I oped file-roller from an elevated terminal, the deletion worked.
file-roller/Archive Manager 3.42.0 (which is the version shipped with my distribution; that distribution is Linux Mint 21).