Can`t connect to vnc-server on virtual machine

When I run vnc-server on my pc (for example tight vnc or some server from github) it works well (firewall and port-forwarding configured)

But when i run it on virtual machine (firewall and port-forwarding also configured) it doesn`t work

Error tells me smth like "Win32Exception (0x80004005): Invalid descriptor ... Graphics.CopyFromScreen..."

In both cases I can connect to the server with the PC where it is running, but in the 2nd case the connection from the remote PC was unsuccessful

What am I doing wrong ?