Not sure who else encounters this, but not uncommon working in Surveyor for track splines to vanish (often entire lengths) as you pan the camera around making it hard to follow what you have and haven't done. This only seems to affect certain types of spline - for example just about all the UK bullhead types do this (both the alpha and non-alpha variants) whereas the VR track or Russian tracks don't.
The answer is probably doing route development on a laptop over two years old and maybe not man enough to cope with TS12, but then you would think if that was the case it would affect all splines not just certain ones. Either that or use the splines which don't have an issue - even if not strictly accurate for a pre-modern era UK route.
The answer is probably doing route development on a laptop over two years old and maybe not man enough to cope with TS12, but then you would think if that was the case it would affect all splines not just certain ones. Either that or use the splines which don't have an issue - even if not strictly accurate for a pre-modern era UK route.