So, I decided to finally have a go at learning to rocket jump. Been playing like 9 months and never got round to it. So sue me. I kinda suck at it too. Sue me again..

But things weren't helped by finding myself suddenly looking at the floor or roof. Hell, at the end of the video, I started spinning and just kept spinning and looking at the floor. I think I've had this issue before and it went away when I went back to the default surface setting.
Anyone else had problems with surface tuning? Is this a thing, or is it just me?
I tried blowing out the sensor with compressed air. I can go back to the default surface setting, but it raises the LOD significantly. :(