I burned all bodies and it told me I can get a reward, but when I go see Proximo he just stand there and I can't talk to him. I got the quest only by the bulletin board, then bought a book and burned the corpse. Maybe I had to talk to him before buying the book? Anyway, seems bugged now. Fourth important bug encountered so far :(.

You can't talk to him? Usu. he will at least talk to you about tournament and stuff.

Went to the elf camp and back and then I was able to talk to him again.

This is happening to me as well. I have 6/9 and I can clearly see 3 more by the stream that I can't burn. Mouse over bodies results in no tool tip for burn...just the "eye" icon. If I press any of the mouse keys and come back later, the corpses are burnt but my quest track still displays 6/9. Not sure how early this got bugged...because I obviously burned 6/9 corpses, did a bunch of other quests and now can't finish the remaining 3.

You sure you didn't already burn that group? I've heard of one not registering, but never three at a time. Given the number, I'd say it's possible that you burned that group already and then didn't recognize it later. There might still be another group of bodies that you need to find.

Was having same problem. I can confirm this is not a bug. if you get only an EYE icon then it means the corpse has already been burned and you are missing X no. of corpses to be burned.