Apologies, we are confusing the issue a bit! Sentry11 has pointed out that EGBR - Bishop's Rock, which is the subject of my other thread, seems to have two sets of data associated with it, which might possibly explain the collision problem.
This thread was started about EGLH - Needles lighthouse which only appears when the 'World Objects' setting is at least 'High' (unlike, say, Bishop's Rock). This seems like it should be fixable. I have actually tried 'High' on my system in VR and it will just about hold its own, but 'd prefer to drop it a notch for better FPS.