Resolution settings won't apply in game. Can only change resolution if I change all of my MacBook's resolution

When I got my M3 Pro a month ago, I was able to launch the game, with my default resolution 1728x1117 on the MacBook, and apply 4k resolution in game. No issues.

About 1-2 weeks ago, the game now launches at my MacBook resolution, resulting in a stretched out, blurry screen. Half my screen is missing due to being stretched out. It’s almost like I’ve zoomed into the game.

The only way I can get the game to a playable state is if I change my Mac’s resolution to 4k. The game will launch at 4k and fit on my screen. The problem is, the MacBook at 4k makes everything way too small to read properly. Gaming in 4k is fine, but general Mac UI isn’t.

I don’t know what caused this change to happen, but it’s incredibly frustrating. My in game mouse cursor is so tiny now, and no matter how I try to scale the UI, the cursor remains small in game, and I can’t tab out to read mail or Safari, as everything is just too tiny.

Any ideas what prompted this sudden, stretched out WoW trying to mimic my Mac’s set resolution?