I'm not an admin/developer, but I can say that it's a bug. If you load the game by link, it will show the final position when red royal moved to the hill and checkmated everyone, so it means that the game should have ended there. Also there's a message "Md8-f6 is illegal", it's illegal because the game already ended
Bug or not?

I played a game of Wof ☉
https://www.chess.com/variants/custom/game/53136616/35/1
and the same thing happened, it was kind of laggy and i premoved onto the hill, and the game showed my king moving onto the hill, but then the game kept going, after the game i reloaded the page, and it re-wrote history, ending the game with the king movin onto the hill. but it did not change
- the funny thing is in the standings, it says i have played one game and won one, even though i played two games and won one, and ???? this one.
if you look at the pgn4 of the buged game it said the game ended in threefold repition, which was what it ended with after i kothed. but it changed the move notation and deleted everything after i moved onto the hill.

I had a Koth problem in https://www.chess.com/variants/custom/game/53148348/21/1 and I lost some rating
https://www.chess.com/variants/battle-of-the-castles/game/53137120/113/2
In this game resigned zombie red reached the hill at move 29.But the game continued and ended with an autoclaim. However,in the archive games,the game ended when the zombie got KOTH. But you can still see that it had autoclaim happened.Is this a bug or a new game rule?