I've been having this issue all day and haven't found any solutions to the problem.
>I download a game and run it.
>menu loads mouse works fine.
>press play and load into said game.
>wasd work just fine.
>goto move the mouse, Nothing.
>mouse is stuck in the middle of the screen.
>walk over to something i can interact with using the mouse buttons and they work fine.
I'm wondering if anyone else has had this issue, i can play games off steam and they work fine. Even a few games off itch work fine like security booth and The smiling man for example. I've tried everything i can think of to fix the issue even to the point where i'm about to write a small script in an attempt to gain mouse functionality again but that seems like more hassle than its worth. If anyone has any ideas on how to fix it or has maybe had the same issue, i have ran out of ideas and would be very grateful for some help.
TLDR - My mouse works until game starts then is stuck in the middle of the game window and the mouse buttons work.
UPDATE: Solved. it must have been my antivirus (Comodo) blocking certain access to the game files or something along those lines. found that it works fine i just have to run everything in admin and give full access before my mouse inputs are read. hope this might help someone in the future that has the same issue.