All masked materials are clipped near the edge of the right screen. It also affects level geometry, not just widgets. Translucency seems to be fine, it’s just the masked materials, regardless if there’s an actual texture mask or just a parameter.
Even material like this is bugged. The only way to fix it is to disconnect the pin from Opacity Mask or just use Opaque material instead of Masked, but it’s not an option in many cases.
