Frame Resizing Unexpectedly on Run

I’m trying to set up a GUI with a Frame that takes up the entire screen. This apparently works fine in studio, but when I hit run, the Frame automatically resizes itself.


Screenshot from while editing in Studio

Screenshot from after I hit run

The Frame’s Properties, for reference

As far as I am aware, the Size being scaled to (1,1) should be sufficient, but apparently that’s not the case. The issue is definitely to do with sizing, rather than position (the -10 offset to Y keeps the lower edge on screen in both images). The only thing I can think of that might be causing the issue is the Asset Manager disappearing when I click run, briefly making the Game window wider.

Am I missing something obvious or is this a bug with Studio? If it’s a bug of some kind, is there a known workaround?

It turns out I was missing something obvious. Enabling “IgnoreGuiInset” on the outer GUI solved the issue.