Hello.
What basically happens is that people are creating lobbies from existing popular game modes, then changes the settings to their liking.
So, if someone auto-join a gun game lobby for example, it’s possible for that person to get placed in a broken lobby that has no connection with gun game, just because the creator of the broken lobby kept the same GAME MODE name as the original creator, but changed the preset.
In conclusion, lobbies created from existing game modes should not be editable.