Mouse won't lock to game since v1.21.43 (Bedrock Edition For Windows)

Ever since I updated to version 1.21.43 I have an issue where my mouse won't lock to the game. If I accidentally look too far down and click something it tabs me out of the game. I've windowed and fullscreen mode, reinstalling the game, restarting my PC, and even changing the "EnableLUA" value to 1 in the registry editor. None of it has worked. If anyone can help me it would be much appreciated.