I consider myself very good at incubation. Using a Farm Innovator incubator I have 100% hatchs most of the time. This is a mistake I have never made. While preparing my incubator for lockdown I set my eggs in a still air to keep them warm while I set my hot damp sponges in and set some paper towels down over top the wire. I set all my eggs back into the Farm Innovator for lockdown. I set the top back on. Before bed I checked the temps 99.7. Pretty good. I said good night. When I got up this morning the temp was down to 90. I freaked out and turned up the heat and waited, very little change and very erratic. Then I noticed the problem. One of the viewing windows had fallen out. All night these eggs sat with a wide open window. I found the window on the floor behind the table. I finally got the temps to settle at 100.0 and the humidity is climbing. Has anyone else had this kind of fluctuation in temps at lockdown? What was your hatch rate after these fluctuations. Well I guess I'll know by Sunday.