Issues Running On Mac OS 11.0.1

Hello. I am running HOTS on a new 2020 Mac Book Pro w MacOS Big Sur 11.0.1. For some reason when I load HOTS from a fresh reboot. The game loads and runs properly. But if I quit the game and then try to re-launch HOTS the game only fills the bottom 1/2 of the screen and I cannon access all the content on the page. Please help me resolve this issue.