I am currently designing a mobile app. I need to be able to quickly wireframe and the prototype. However when I use any of the mobile frames - and i go into prototype and play the design is no longer within the frame? I design within the frame… and no complicated masking or anything it just refuses to work - Ive tried on various screen size all with the same “out of line” issue. Is this a bug? How can I get it to work properly?