Re: Problems since the 0.2 Patch
The alt tab issue is being discussed in here:
Looks like the DX11 option /w full screen is bugged after the patch and you will have to use DX12 to get full screen and alt tabbing without issues. The crash you're seeing is the video drivers crashing (confirm this in EventViewer under Warnings/Display or the Reliability Monitor). This will most likely be the cause of the artifacts you're seeing.