This happens only in one curve, on one track (Kyoto). Restarting LFS or the computer doesn't remove the problem. Can I fix this anyhow? (Please see screenshot)

Thanks

Are you using a 16bit Z-buffer by any chance? (as opposed to 24bit... it's in the graphics settings)

I am using 24bit Z-buffer.
Strange but now it seem to have fixed itself... for the moment atleast. Cross my fingers and hope it stay fixed!

Thanks anyway