Mouse won't reach parts of screen on multiple monitors

Hello,

I was hoping someone could help me.

I have a ROG Strix Gaming Laptop with three monitors attached - 2 x 22 inches and 1x27 inches. The laptop has a decent graphics card.

Generally it works fine - I have never had an issue.

Most recently I wanted to rotate and invert my screen and downloaded a software called UltraMon.

When I start the software it is all fine for a while but then my mouse does not cover my whole screen on any of the monitors. It only reaches the middle of the screen but can penetrate out of this space to reach the outer edges of the screen.

When I turn off Ultramon everything works.

Has someone come across this and could they offer any advice?

Thank you in advance!

Windows / Chrome 115.0.0.0