Points Problem

Fisrtly all you experts out there - I apologise if this is obvious but Im a beginner!

Im running Trainz for Mac and it works fine - the only problem is that I have modified a route and saved it, when I reopen and go to drive it works fine, but if I then save it as a saved "drive" when I go back into it half the track points are suddenly blank or two red arrows rather than green/red rendering the previous hours of fun wasted as the junctions are effectively useless!

Does anyone have any ideas and again sorry if this falls into DOH! category!

This is a common problem. I,m betting you modified it in session not route. You should only do the rules, everything in the locomotive tab and setting up industries and portals in session (Not installing them which should only be done in route) Everything else should be done in Route. Installing point switches in a session is a recipe for disaster. I have done the same thing once myself. You don,t do it twice, lol.