Hey @Seulesss,
My first thought is there might be a software issue of some kind that's causing this to happen.
What happens if you start your PC in a Clean Boot before you launch Apex Legends? If there is anything else running that could be causing this that might help to get around it or narrow it down. You can find more details on how to set up a Clean Boot over at the EA Help website.
Let me know how that goes once you've had the chance to give it a shot. Thanks!