why do this happen?

steamed for 12 mins like i always do but this time it was liquid on the inside, next day i took it outside of the fridge for an hour steamed it for another 5 mins with shell on, still liquid

steamed for 12 mins like i always do but this time it was liquid on the inside, next day i took it outside of the fridge for an hour steamed it for another 5 mins with shell on, still liquid