4K Fractional Scaling blocks mouse inputs in first person

[blacknight7890]

Acknowledgement of checking existent issues

• I have checked if my issue has already been reported, and I am certain that my problem has not already been addressed.

What problem did you encounter?

I was having UI scaling issues due to my 4k monitor, so I used the config option I found here. It helped fix the UI issue cause by fractional scaling, but created a new problem. whenever i enter first person in a maximized or full screen window, my mouse buttons are no longer registered. I can move my camera around, but my left right and middle clicks do nothing. This only happens when my cursor is being locked to the center of the screen by the game application. I cannot zoom out either so my game gets stuck like that unless I close the application.

here is my current settings. Turning the HiDPI settings on or off has no effect, I am using PopOS.

Roblox Experience link

No response