A lobby will be DISBANDED with the "Satisfying launch conditions took too long" when it has failed to result in a room instance being launched from a lobby instance. The clock starts ticking when the lobby instance is created. The room instance must be successfully started before the "Too Late Start" time has elapsed as defined in the lobby type rules definition.
Typically, a lobby will timeout because either a) the minimum requirements for the lobby type have not been satisfied or b) there's a problem communicating with the room server manager responsible for spinning up room instances and the process takes too long and/or never completes.
Here's a more in-depth description of how lobbies work in general in case you haven't seen it: