Hello,
after some time of working in UE4, I get artefacts in the viewport - and after some time (when I do not minimize UE4), the editor will freeze for some time and than crash.
The computer doesnt crash, only the editor.
My first thought was the GPU, so I made stress tests and played heavy games.
Not problems and no artefacts.
I also reseted the Editor to see, if I made a change that is causing the problem, no luck.
It doesnt matter if I have a heavy scene or just something simple.
Anyone has an idea, what that could be?
The screenshot is the situation while frozen, so its a photo with my phone.
Sometimes there are way more artefacts - but it will always lead to a crash.
Thanks alot! 
