TLshell aborts with message "Back end gone"

[Uwe Siart]

On my Windows 10 box TLshell (tlmgr GUI) aborts with the message "Back
end gone". I can't tell since when the problem exists since I routinely
use tlmgr on the command line. But as a rough guess I would say that it
still worked one week ago.

-- 
Uwe