Ok, thanks

Then the VNCI plugin is disable by default.

Bad solution.

I have download the remmina source rpm, enable it (-DWITH_VNCI=ON), rebuild it and reinstall only the remmina-plugins-vnc rpm and now the VNC incoming connection work great again

IMHO

I think Fedora must buil the remmina package with this option enabled

If this plugin is enable, and sometime and in some circumstance not work, is better than it's not enable and alway do not work.

What is the best way to report this my suggest?

Thanks

-- 

Dario Lesca

(inviato dal mio Linux Fedora 27 Workstation)