Game crashes when I try to clone a route

[BoostedFridge]

I'm attempting to clone my route for the purpose of trying out some new textures and scenery items. I click on the route, then 'clone route' then TS2015 abruptly closes. No error message, or crash popup. Is anybody else getting this, or am I doing something wrong?

[HankySpanky]

Its pretty much straight forward. Try to clone a different route and see what happens. Do you have enough HD space?

[OldProf]

This will be of no help whatsoever, but I cannot resist the temptation to repeat an old joke:

Patient: "It hurts when I do this."
Doctor: "Well, don't do that!"