I've run into a problem I need sorted out fast ...

I want to create a motion study for a sales presentation, make a nice flythrough. I've done this before and everything worked fine. Now I'm in a fairly large assembly, I've created a spline for the camera to follow but when I go to the Motion Study or Model tab the sketch (2D or 3D doesn't matter) won't show.

I know the assembly is quite large so I reopened with Large Assembly Mode turned off but the "View Sketches" option is still greyed out. See screenshot. I'm figuring this is the problem.

I've done the same previously and after some clicking around I suddenly got the sketch to show but I can't remember how I did that. Any of you have any ideas? And no, the sketch is not set to "Hide".

Thanks!

Robert