From that screenshot, it looks like you're using Safari, Mrchntmarine? That's a good detail to include, for the support people to know.
I have not had the other issues you listed, but I did see #1 a couple of weeks ago.
I'm running Chrome v79, on Windows 10.
I would browse to the forum index page, click to log in, get the login dialog, enter my username (email address) and password, click to submit, the dialog would close, but I wasn't logged in.
It's been stable for me for three weeks since, but there are a couple of other threads in this forum to report similar issues, so yes, others are having similar issues.
It's possible that this and other problems are browser-specific, that they occur in the way the forum's software interacts with any given browser. If so, it's possible that it's been corrected for some browsers but not yet for others.