After tabbing out (e.g. checking sth. on discord) you cannot tab back
into the game. You still see the game, but when you click around you
open files on your desktop behind the game instead. I use a setup
with 2 screens with different resolutions. I play games on the bigger
Temporary workaround: when I cannot tab back in, I put Verdun into windowed mode by pressing ALT+ENTER and put it back to fullscreen by pressing ALT+ENTER again. Just to avoid ALT+F4 :-) Then it works again.
Even better workaround: Instead of tabbing out or moving your mouse out of the screen (e.g. while a menu is opened), put Verdun into windowed mode like described above, do your stuff, and put it back to fullscreen.
Game version: 260.6784 (default branch)
Customer support service by UserEcho