I'm still trying to solve my own null profile issue. In doing so, I noticed that my ninth and tenth inventory slots are not recognized by Lucy. They do appear, which is good, but they are listed as "unknown31" and "unknown32" respectively, instead of General9 and General10. This may not make a difference to anything, but I thought I would bring it up.
If that does not suit you, I hear you can find specially trained Rockhoppers in Shadow Haven.