Alt-tab freezes Game

When I alt-tab the game to to something like change my music the game locks up and can stay locked up for upwards of half an hour i have tried full screen/ borderless/ window and its always the same any help to fix this would be awesome thank you.

I have the same issue, and I haven't been able to fix it either.

I have the same issue with the game, since day one. I kind of learned to accept it but to be honest if you are in a survival map at wave 18 or higher and just want to tab out, to do whatever, it kills the fun instantly.

 

Most of the time I try to build akf builds and the waves are pretty long so I would like to watch a YouTube video or just listen to some music, but at the current state it's simply not possible.

 

I tried all modes full screen, border less window and window, I also tried different settings and resolutions, but the game just freezes up and the only option I have is to hard reset my pc because nothing else responses anymore for quite a long time.

 

I would love to get this problem fixed.

I don't have just make it bordeless window mode most game have it when you have the remove the game and then start back up