Kicked out of lobby after MP mach has ended.

Is there a reason I cant stay in the same lobby after the mach has ended in multiplayer?After each game it reverts me to the playlist screen so I have to find a new mach after every game.Is there a way to fix this?

This was an intentional change to the MCC lobby system back when 343i was working to fix multiplayer for this game. When lobbies stayed together, matchmaking never worked, so the best alternative was to promote a restart of the search. There is no word if this will ever change.