Bottom half of my screen won't work.

Synthz14

Hey I've been having some trouble with Galaxy S8+ where the bottom half of my screen won't work when I start up the game and it has loaded, my screen works perfectly when im not playing. Im unable to access my cars and race. 

Synthz14

Any idea what's causing my screen to act up? 

[RR] Sage

I haven't seen any other reports like that. Have you tried reinstalling the game?