Screen vibrating while holding space

Whenever i hold space to center my camera on my hero the screen takes 2 seconds to react and center it, and after that the camera shakes like crazy. Just to exclude a few things that i already tried:

  • Changing the screen center to another key doesnt work
  • It started 2 days ago, before that everything was perfect
  • re installed the game and restarted all settings
  • no windows update or similar
  • not a keyboard problem, tested with different one
  • only game this is happening as far as i can tell
  • locking the camera with L works, doesnt shake, but its not a solution
  • Same problem on custom games
  • tried different screen settings, doesnt seem related
  • Filter Key is off
  • Pressing “Home” to reset camera doesnt work

Any idea what it could be? Thanks for the attention!