Screen flashes red and black, white on Minecraft Windows 10 edition

Hello, my issue is on Minecraft Windows 10 edition. When i try to open the game the Mojang logo appears then it dissapears and then the screen starts flashing red and black. Theres a video attached that shows my issue. The version iam trying to play on is 1.16.201.01 i think. I used to play this game before the update and everything was fine. I dont know what happened. Ive tried everything i could. Nothing seemed to work. Please help i really like the game. I spent 26 euros on it i dont want it to go to waste. Thank you if you could help!