Specifically Royal Mausoleum Workers Lodge, Royal Mausoleum Constructors’ Chapel, and Royal Mausoleum Storage. These maps have 2 channels to each of them, and because of the way the grinding mechanic is set up, you need to cycle between both channels to grind optimally. Because of the level spread here, and the fact that it’s popular with much higher level players as well, it will only continue to get more crowded as more people join the game and share knowledge of the maps. With the mechanic set up as is, it’s not possible to have more than one party to each map, and there’s always the possibility that a Warlock, a class that can instakill these low mobs, can just come and steal your map with no recourse.
Please consider raising the channels to atleast 4, and possibly change the mechanic that spawns the mobs used for grinding to have less of a cool down after use.