This just got reported officially, but thought I'd mention it here too as I've not seen anything along these lines.

100% repeatable.

Start layout.

From the Surface Editor Panel, Open up the Preset Shelf.

Minimize the Preset Window.

File your Crash Report.

It's odd that I never saw this before. I've been relegated to a laptop for the past couple months so not much screen territory. I guess I've been closing the window instead of minimizing all this time, which for now is the work around I guess if you don't have a 2nd screen.