NDOF > Layout Page > Up/Down stopped working


While on the Layout page in Blender I’ve noticed that Up/Down does not work while it does work on the Modelling page.

It works on all pages in a new Blend file but not the one I’m currently working on. I’m fairly new to Blender. Did I by chance turn something on with an errant keyboard shortcut?

All the NDOF settings are the same and the Spacemouse settings haven’t changed either across the current project or a new blend file.