Well seeing as how every iteration since 4.4.1 (correction there was a memory problem in the 4.5 preview but it was solved by the release) has run solid until the windows/unreal/Mozilla meltdown. I doubt it is my system. Btw the Oculus since the release yesterday is working… barely. Not as solid as it was before. I just attempted to start a brand new project and made a small terrain, then placed a simple ground mat from the marketplace ‘Landscape materials’ asset and it still did the same thing.
I have a geforce 650 ti with 2 gigs ram, and a AMD auto overclocking 4.0 ghz chipset. I am running directx 11 and I have no problems with anything else. And my machine is very stable.