When multi-camera view is enabled for editing:
 
- UHD footage,
- using UHD multi-camera source sequence,
- in a 1080 timeline
 
The Program monitor shows the individual cameras zoomed and cropped, like viewing an UHD clip in a 1080 timeline without scaling to fit or fill frame. IE the multi-camera view does not carry over the effects settings of the multi-camera clip, so even if the multi-camera clip is scaled 50% to fit the 1080 frame the multi-camera view shows a scaled and croped view of the individual angles.
 
Idea:
 
add a setting that forces the multi-camera view to fill-frame or Fit-to-frame for individual camera sources
OR
have the mult-cam view apply to the position and scaling attributes for the multi-cam clip to individual camera sources