Fullscreen Not Native Resolution?

I’ve been trying to get a HUD element placed correctly, and I noticed that my fullscreen resolution is 1280 pixels wide while my native resolution is 1920. I was under the impression that fullscreen should be native resolution if “Engine Scalability Settings -> Resolution Scale” is set to 100%. Any ideas why my resolution isn’t matching my native resolution? Do I need to set it manually somewhere?

You’ll want to go into Editor Preferences > Level Editor - Play > here you can change the window size.

You can use common window sizes or set a specific size you would like.

Tim