Can you give us a screenshot of the XMR tab not populating? Thats also not happening on any of my machines, and not reported anywhere.
Is it that you just have to paste the address in and click lookup?
Sure, no problem. Here is a screenshot. It happens on all web browsers but was working fine just a couple days ago.

The XMR tab looks exactly the same for me and has never looked anything different. I thought it wasn't implemented yet.
Tested this on different browsers (FF, Chrome, Vivaldi) in "normal" and "private" mode.
Other than that I have no problems with the pool whatsoever, so this cannot be the reason for your mining issues.

Thanks for the tip with minexmr.com, I see my stats there just fine.