FTP Voyager Hangs at Exit

FTP Voyager hangs almost 100% of the time when exiting the app. I usually exit by clicking the X at the upper right. It's marginally better if I remember to Disconnect the session and use the Exit FTP Voyager button. The only solution if it hang is to use Task Manager and kill the process.

Version: 16.0.1.3

OS: Win 8.1 and Win 7