Winbox hangs after error notice displayed

I am running Windows 10 x64 and consistently i have an issue with latest winbox.exe. If i connect to a routeros device and the username+password is wrong, it will say “Invalid username and password” – WHICH IS CORRECT – but it won’t let me click anywhere to close the winbox session. Winbox keeps running until i manually kill it via taskmanager – which is a real chore if i have to guess a routers password. This happens consistently on all my windows 10 machines (that are x64). Trying different compatibility modes does not help.
Does anyone have a fix for this?

Is there really no fix for this issue?