Twoflower wrote: ⤴
Thu May 24, 2018 9:56 am
Mint Cinnamon 18.3
That problem shows up here fairly often - and it's usually, if not almost always, Cinnamon/nemo.
Using the simple two-pane "xfe" file browser apparently solved it for at least one person, or you could copy with "cp" in a terminal.