I'm having an issue with the Rotobrush.
The problem is when I'm in the layer, not composition, window with the RotoBrush active and a selection made. If I hold down the space bar to move the layer the entire background turns solid pink. The hand tool remains active. I have to hit alt + W to re-select the hand tool. Once I click on the layer again the solid pink background disappears.
I'm using a Dell T3610 with a Q5000 video card, 6 core processor and 64 gb or ram. I have no idea where to start looking for a solution.
I had to got to Adobe Support for an answer to the questions. The tech ended up deleting all of my preferences from my hard drive and that cleared up the problem...and my preferences. If you're going to go this route make sure to sync with the cloud before you do it.
Or copy your preference somewhere else on your hard drive. You shouldn't delete them; you should just move them.