Last night we where doing the CoE dungeon, we did the pre event to unlock the dungeon, while we where running path 2, ( only took about 10 mins ) the megadestroyer event started, and MM became a megaserver map, and it automatically reset the dungeon WP so it was contested again, meaning we could not re-enter, whereas we normally would have had plently of time to do so,
If you are determined to push ahead with this megaserver, you should consider removing the events for opening of dungeons.