Powerpoint and everything else are different sizes

When I am in the cue and looking at the slides, why are lyric slides different sizes than Powerpoint slides? All are set to 1920x1080, but in the area where I can select what to put up, for songs I can see 4 slides across, but on Powerpoint only 3 slides?

Slides are the same size as songs also. It seems only imported Powerpoints do this. I know we can change the size with the slider on the bottom, but it would be nice if they were all the same size.

We are in the process of making some big Presenter updates, including a fix for this bug.