Just a quick note, the main logo in the forum header is not being served securely (on an otherwise secure site). It just either needs the URL to be protocol agnostic (ie just put //), or to explicitly be https://
There are actually more mixed content warnings (open the developer tools in Chrome F12) and you’ll see them. You should probably take a look as Google are going to crack down on these issues even harder in upcoming releases.
I’m using: Google Chrome Version 81.0.4044.113 (Official Build) (64-bit)