I have Hova Bator incubator and on day 15 we had a power cut for one and a half hours. On hatch day nothing was happening and now we're on day 23 and still no pipping. We also had two Brinsea incubators running at the time of the Power cut. The next day we candled them and there was movement. There was no movement in the Hova Bator eggs. So could the polystyrene make the Hova bator lose temperature faster? Do you think the Power Cut killed my chicks?