I tried unchecking Windows Layouts and just about everything else in the Lens Manager, with no luck. I'm not too surprised this didn't work because I have "None" selected as the lens. Yet, when I change screensets the track view is messed up (missing tracks, floating folders, folders that won't expand or collapse). I can fix it by reselecting "None" in the lenses pulldown (which is why I think this problem is related to lenses).
Today I tried using a lens (the "Advanced" lens that comes with cakewalk). That lens also seemed to cause issues with the track view.
I have a reasonable work around, so it's not a show stopper. Maybe it will be fixed in a future release.