Template and score layout issues

Whenever I input notes into the score using the Small Pit Percussion template, the second page of the score goes way off the page.

Then, while in note input mode, when hovering the mouse over THAT page, the space just goes completely white.

I am not sure if this applies to all of the score templates, or anything in general. I am running on Windows Vista, and I'm not sure if that's part of the problem. But it should definitely be looked at, and most likely be fixed.

MuseScore Nightly Version: MuseScoreNightly-2016-11-03-2015-master-221f20b (for Windows).