Final Boss Bug

I was playing tales and i finally got to the final boss after beating all the orc prides and i was fighting them for about 2-4 turns when they vanished along with the sun paladin. I got a portal back to the world map and i went and closed all of the spawners but i cant beat the game with this character anymore because the bosses are gone. please help. thank you.

ive been playing for a

ive been playing for a looooong time and never heard of that bug before
perhaps you were using some sort(s) of addon(s) that would cause that?

i only play vanilla. and

i only play vanilla. and nether have i this is the third time i've been to the final boss. and ive never had anything like this.