Game Stuck on Loading Screen Before Character Selection

Hello, I seem to be having problems with the game loading/scaling. I play on a laptop and the game was working fine but a few days ago my launcher appeared smaller than usual and then when I logged into the game the UI on the character selection screen was very small. I tried Googling resolutions which led me to trying things in my display settings/checking the compatibility tab in the launchers properties, but none of these options worked.

Eventually I decide to just soldier on with the game but then it started freezing on the loading screen just before character selection after launching it. I looked at posts on Reddit and SWTOR forums, where things like going into the client settings file and changing the Fullscreen option from true to false, pressing ALT + Enter on the loading screen, none of these have worked really. I reinstalled the game on Steam, then deleted it from Steam and reinstalled in on the regular SWTOR launcher, however neither has made a difference.

What I have noticed is that when I change my resolution in client settings to say 1920 x 1080, the game takes me through to character creation no problem. However, when I go with my laptops native resolution (2560 x 1600), fullscreen or fullscreen windowed, it freezes and won't load.

I'm just a bit of a miss hear as the game was running perfectly fine in my native resolution a few days before and the 3 months prior since I picked up the game again.

I don't know what happened, if I've done something or how to resolve this and would really appreciate any assistance or tips to help get this resolved please 🙏