I’ve opened it when I have to, to remove batches of chicks seeming to do more harm then good when there is a lot of them.
I would give it another day or two and check to see if any are pipped if you can.
I incubate around 55% humidity and hatch at higher, I had a huge hatch June 25th of 93%. I did open it a few times quickly to remove batches and the eggs were not affected the ones that did not make it had never pipped at all. Ones that were pipped when I had to open also hatched fine. You have to be quick about it when you have to do it. The humidity will go back up.
I would give it another day or two and check to see if any are pipped if you can.
I incubate around 55% humidity and hatch at higher, I had a huge hatch June 25th of 93%. I did open it a few times quickly to remove batches and the eggs were not affected the ones that did not make it had never pipped at all. Ones that were pipped when I had to open also hatched fine. You have to be quick about it when you have to do it. The humidity will go back up.