Apparently I got a few of the slots to work but then the rest were still stuck at helms. It's as if it loads each of the different item databases SUPER slowly and defaults to the Helm one until it loads them? (An ABSOLUTE guess - this is just what it seems like because I left the Browser open while I finished a couple of rifts, came back and I could select a few of them - as above). If I reload the Build Creator all I see is Helms again for every slot.
Also, I cleared my Cache just in case but didn't help.