With ThinLinc 4.14.0 client on Windows 10, switching between virtual desktops with ctrl+win+{left,right} in Windows, and then back to the ThinLinc Session, leads to a stuck 'Win' key, and no key presses are sent to the session. For example, after switchen virtual desktops and then back to ThinLinc, focusing on the session and pressing 'e' will open Windows Explorer. The current workaround is to press Win+E one more time before setting focus on the session. Reported upstream https://github.com/TigerVNC/tigervnc/issues/1578