Premiere Pro 2020 stuck at loading when starting up on macOS
I am using Macbook Pro (15in-2016) with macOS Catalina ver. 10.15.4.
I face a problem when I trying to open premiere pro. I haven't opened Pr lately, and when I open up today, it appears like this.

My Pr version is 14.1.0 (Build 116), I believe it is the newest version.
I have tried to reboot the Macbook and force quit Pr, neither of them worked.
It just keeps spinning. Any way could solve this problem?
*******update*******
problem still exists after reinstall, resetting preferences and downgrade.
Title edited by Mod.
