Editor freezes after launching Standalone game

Every time when I run my game in Standalone mode, editor freezes and I have to restart it by killing process. This issue occurred recently and I want to know if this is just me, or someone else also has this problem. I wonder if this issue is related to my project size, which is currently over 20 GB?

Hey,

I just had the same issue, you need to update your video card driver and be sure to perform a clean install.

The drivers 375.57 had a lot of issue on W10 and Nvidia released a new version (375.63).

Cheers.

Didn’t help me sadly, when this happens I look in task manager and see the status set as “Suspended” then it changes to not responding. Pretty weird

no its happening here too.
I think anyone can recreate this issue by creating a new Third Person Game and launching for macOS,
after the game launches, CMD+Q and thats when you see unreal editor FPS drops to 2-3 and every single windows, even console is unresponsive…

it feels like after launching for macOS and quitting the game, Unreal Editor is not going back to its previous state.

UE 4.18,
High Sierra