Caij rumor doesn't disappear

I was going for the last bounty rumor when I saw that I could attack Caij Vanda from above and I did. The game was supposed ti have q cutscene before the fight that I didn't know about and after the fight I didn't recieve the last bounty collectible though I got the trophies and it says in the "bounties tab" that Caij is defeated...

I've tried all different things to get the collectible but it doesn't show up in the menu. 

Please make a small patch and fix this bug for all the players that did the same mistake.