What gameplay feature is this bug affecting?
Cannot progress

What's the issue? Please include any error messages you receive and as much detail as possible.
When battling leviathans/bosses on event page when I'm just about to win the game freezes and says server timed out, the battle becomes invalid upon refreshing, this doesn't happen if I lose, I have beaten 3 leviathans at this point and won and it still says I have 0/5 bosses to defeat, looking through the board this seems to be happening to others as well

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?


Any screenshots you can provide us with?


Please provide us with step by step explanation how this bug happened so we can attempt to replicate it. If it's complex, please include screenshots where possible:
See above