Hi,
I know that you said other things before, and I had tested these issues on your website. But with the new tests I did since I personally installed the Essential edition on your website, I couldn't reproduce any of those.
Everything looks like it's working properly on your website.
So maybe it comes from the upgrade, or maybe it's just because you enabled back the user synchronization plugin as I had told you.
The fact is that it now works. I do get the address popup, and can go to the next step.