Invisible Baron Bug
Hi there,
I wish I could provide more details as to how the bug occurred but I had a situation in a recent game where my team got into a fight near baron while I was splitting bot. Summoner spells were burned by my team while escaping and that caused baron to become invisible. To be specific, Baron did not die but you could not see his hp or model and therefore couldn't target him without using attack move. We were able to clear Baron shortly after and our jungler commented he couldn't smite it. I do not have any replay footage to provide unfortunately but I can identify which game it was and my summoner name. Please let me know if you need any additional information.
Shorin0723