I believe that this issue may require further delving into.
I say this, as this has happened to me three times in three days. This morning, my Hero is a "Dwarf," much like a few posters have stated. The two days prior, my Hero became "Raksha" and "Naga," even though I had changed them back to my original selection of "Wargare."
For me, it's not an issue. I rather like my new Dwarven Hero... especially since I'm VIP Level 0.