[Client] Cropping? Bug

Weird cropping-like effect on the client when I opened it. Unable to get past the shown window, as the button to pass is inaccessible. Although it looks cropped the full size of the client still exists, the invisible parts are even tangible as I can move the window around, but any buttons or interactions that should exist there (i.e. friends, quests, ok button) are inaccessible. Uninstalling and re installing had no effect.