502 Request Error on Beta 5.5.1

Fresh install Beta 5.5.1 on macOS 10.14.6. After setup the first host with Apache, PHP 7.4.x and MySQL 5.7.x I get this error when I try to access the page:
502 Request Error

Could you upload your logs here?
If you disable all plugins, do you still see this error? There’s a chance that a slow SQL/PHP function is the culprit.

Hi Jack, thanks for your answer.
My Account was temporarily on hold so I can only write now:
The problem had already been solved with the stable 5.5.1.

THX :sunglasses: