Well, an infinite multiverse doesn't mean there's a universe for every concept, just that there's an infinite number of multiverses, and a quantum multiverse only guarantees a universe for every possible series of events (except those that necessarily lead to that universe's destruction.)
Except in the universes where that's different, of course : )
Is there a universe where that doesn't happen all the time?
Well, an infinite multiverse doesn't mean there's a universe for every concept, just that there's an infinite number of multiverses, and a quantum multiverse only guarantees a universe for every possible series of events (except those that necessarily lead to that universe's destruction.)
Except in the universes where that's different, of course : )