I’m so frustrated. I’ve done 4 hatches this year and in each I end up with shrink wrapped chicks towards the end. The chick fluff seems to be coating the top of the water in the troughs and creating a film preventing water from evaporating. I just had to help 3 chicks that were shrink wrapped. They had pipped and zipped but stuck half in their shell. I’ve tried opening and closing the vents. I do not open the incubator while chicks are hatching. What I’ve done this time is break all the rules and pull the egg tray out, take out the hatched chicks, and rinse out the water troughs and refill them with fresh water for the last half of the chicks. Is this a common problem? I’m ready to toss this incubator and get something different. It’s causing so many hatching issues! Any suggestions as to what I can do to fix the problem?