" ...there is nothing for us to fix. I think your photoscenery is just causing you to run out of memory. Try temporarily removing it, and I bet things become a lot more stable"
Can I be clear that when you say your system is running out of memory are you referring to system RAM? Its just, my setup has 32gb of RAM, and uses nowhere near the full amount. If you're referring to VRAM, then am I correct in thinking if you run out it wouldn't cause a system crash, but suddenly cause a big frame rate drop as the computer has to use system RAM as an overflow (non-technical explanation I know!)? That said, I feel this is also unlikely in my case, I adjust my settings to try and keep around 500mb of VRAM free, to allow the variation in demand during flight, and my crashes have happened with no prior warning or noticeable performance settings. The only common denominator is that they happen with RWC enabled.
I have tried as you advised with removing photoscenery, and didn't suffer any crashes yet, but then I have ran with RWC without crashes several times too. It is the unpredictable nature of the problem that makes it difficult to diagnose I suppose.