Bug in 1.6 CK. Edit ANY race and that race no longer becomes viewable in 1st person. In fact, if you open up a pre 1.6 mod that had race edits and just hit SAVE it will happen. We're discussing it here:
http://www.gamesas.com/topic/1383509-need-help-with-serious-mod-bug-missing-1st-person-view/page__fromsearch__1
http://www.gamesas.com/topic/1381788-the-new-unofficial-creation-kit-bug-list/page__view__findpost__p__20977559
http://www.gamesas.com/topic/1383060-creation-kit-16910-now-live-on-steam/page__view__findpost__p__20977522
I've also managed to fix the problem by going back to the pre 1.6 CK, but I don't know how safe that is. Read: http://forums.nexusmods.com/index.php?/topic/702534-attention-all-mod-creators/page__view__findpost__p__5573739
-MM