After months of delaying, I have recently applied the Win10 Fall Creators Update to my PC, and immediately I started experiencing game freezes when alt-tabbing out of the game. It only happens if the game is in Fullscreen mode, when it's loading assets (especially building textures). Here is a video: https://www.youtube.com/watch?v=L0P6l6ZSi-Y
The freezes happen both in SP and MP, regardless of BattlEye status, even if GeForce Experience overlay is disabled. There are no error messages, and the Task Manager is showing arma3_x64.exe as "Not responding" with 0% CPU usage. My game files are on a regular hard drive. I am able to reproduce the freeze with 100% success.