DaVinci Resolve 12 Public Beta. Crashes

When I'm in dual screen mode, on the color page, if you adjust the size of the clips window (on the left monitor) to make it smaller (drag the window border to the right) or if you click on the clips window display button Resolve immediately crashes. I have repeated this with multiple projects. One specific project (that came from ver 11) after the crash would not load anymore so I had to recreate it from scratch!!!

I'm using at iMac 5k with a second monitor (Dell U2414H via display port).
i7 4ghz, 32gb ram, AMD Radeon R9 M295X 4096 MB.