I'm having trouble with some collages I've made in Lightroom. They work fine on Mac computers, but on Windows computers, they are not working. It's almost like Lightroom is defaulting the paper size and not automatically changing it with the template, so it has all of this extra white space and it squishes the templates up and they look bad. I don't know how to fix this because I don't have a Windows computer and everything I've tried to do hasn't worked. Any suggestions?
This is how it is supposed to look and what it looks like on a Mac:
Here are the settings under Page Setup:
This is what it looks like on a Window's computer with the Page Settings: