one of them went all in, but still the river should have opened because none of them are drawing dead. Kc is still in deck which will make llama the winning hand(other players have the other two kings). If it was Ks instead in the deck, llama would be drawing dead because kimi would improve to a flush even if king opened.

Perhaps a display issue then in case no action possible on river. You can see the winning hand does include the river card 8d "Winning Hand: One pair QsQdThJs8d"

Poor o3 folded the nut flush pre..