Hi, I've my back to tye wall. I need the rotobrush, but every time it crashes and the host app closes. See the error message on screenshot below.
Nobody can know anything without system information and the crash log:
Working with your Operating System’s Tools
What I found out is the rotobrush works fine with footage that doesn't come from Dynamic Link.
So if I open a comp with Dynamic Link After Effects crashes when I am using the rotobrush. I have also make a copy of the crash log. Are you still interested in?