xflock4 - Screen Visible Following Lid Close and Screen Lock (Security Issue)

If you click on the top left toolbar button of an application and choose "move" and then close the lid, the machine will go to sleep like normal. When you reopen the lid, however, the screen will still be visible until you complete the move action, allowing the user to view the contents of the screen. Once the move action has been complete, you are brought to the lock screen and prompted to enter your password.

Running xfce-session 4.14.2-2 on Linux 5.7.9-arch1-1 x86_64