When I select bones, they won't import into the reference pose rollout. When I select geometry with a morpher modifier it will not import into the bone poses rollout. I had it working not 48 hours ago while I was working through the tutorial on importing Face FX data into UDK, but when I started using my own assets they would not import. I went back to the tutorial files and tried to import those, and they won't work anymore either. I used multiple sources to reinstall the plugin multiple times, still nothing. Rebooted (when all else fails). Nothing.
There has to be something that I've changed since it last worked, but I can't figure it out. I'm using MAX 2010 x64.
Try working through this video tutorial rather than any UDK specific one: http://facefx.com/content/introduction-facefx-plugin-3ds-max