Why are my clips buggy?

So i'm using medal to make clips of games like fortnite and all my clips are weird green and bugging. I reinstalled the program and for 1 day it was normal i only hat opened the game discord and medal nothing more.did also repair mode and nothing happened. So uninstalled all things in% appdata% and% localappdata%.

like that? On e sec its normal and then it goes to this here so weird

First, why is your question English? If you want multiple answers, that doesn't help on a German site.

Second: why do you use Medal, AMD Radeon or Nvidia Shadowplay are better.

Yikes i didn't notice write only english online so it was accidentally xdD ok i try times amd radeon