Tab Completion no longer Working?

Subject, basically. Is anyone else having issues with tab completion? It shows up, but does not complete when I hit tab, or enter, or even click on it. Definitely not the Emmet-like goodness that was in the previous updates of FreeCodeCamp.

Tried relogging, closing my browser and coming back, even tried Edge, Firefox and IE (Chrome is default). Is anyone else experience this?!

I haven’t had any problems with the editor in Chrome on Windows or Firefox on Linux.