So I stream off a full-HD tablet, which... MAY be the issue, but I don't think it should be? When I stream, only 3/4 of the screen is getting captured. I've tried fitting to screen (CTRL+F), restarting, reinstalling, resizing the streaming area manually in OBS itself, and various sources, as well as checking my video settings... which always default to a specific resolution that's not my resolution ( 1280 x 720 - my tablet runs 1920 x 1080), but I still don't see how that would make it only capture such a specific area.
This is a perfect example of what's going on - look at what the screen contains, then look at the preview OBS is showing. It's about 3/4 coming from the top left corner.
Any solutions?

This is a perfect example of what's going on - look at what the screen contains, then look at the preview OBS is showing. It's about 3/4 coming from the top left corner.
Any solutions?