Reconnecting on shared mode - can you reconnect to room that all players disconnected?

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Im developing an RPG mobile game and when all player disconnect from a game instance (even if there is one player in the room) the room closes immediately and the game state (object health etc.) is lost.

Reconnection is crucial for our mobile game (when the game is moved to background etc.)

is there a way to save this state on something like room properties for reconnection? Otherwise, is there a way to prolong the room closing delay?

Am i missing some kind of 'best practices' used in this kind of situation?

Thanks in advance.