VIRB Edit 5.1.2 on macOS High Sierra beta

For those playing with the idea of using VIRB Edit on macOS High Sierra beta - please don't do so at the moment. When trying to import new videos, the app window goes blank with only one button still visible "< Gallery" which in turn leads to another blank window. The problem existed in 5.1.1 and in High Sierra public betas 1 and 2. To me it looks like the app somehow miscalculated the screen resolution and displays its controls too far right, out of the visible area.

Obviously, beta OS are not supported and we shouldn't etc but it looks like there's an issue that needs to be fixed in VIRB Edit by the time High Sierra goes into production.