Yes keep the newly hatched chicks away from those still zipping it waiting to zip.
Had a small scare Saturday. While we were at kids basketball games, a bad storm blew thru. Snapped a power line pole. We lost power for at least 3.5 hours. Incubator temp for down to 91. Took another hour or so before got back up to 100. Hoping I didn't lose any.
They should be ok, look at it just like mother hen getting off the nest each day. I have a cool down option on my incubator that turns the heat off for an hour each day to replicate the hen leaving the nest to eat, drink etc.