So, I've conquered the import, nginx config, and now I'm stuck on this one. :-)
For some reason, I cannot change either the client or admin theme. It says successful and generates no errors in any logs (nginx, php, etc.) There are some strange issues with the navigation menu on the admin side as well, when you hover over the main tabs, you have sub tabs from both categories showing on top of each other (see screenshot.)
Everything else appears to work without any issues at all.
Any suggestions?