buff rock eggs

[cathyfields46]

I have buff rocks that are due to hatch tomorrow so far no pips or anything. My last hatch last week 2 incubators were 4 days late on hatching I have brinsea octagon 20 advances why such a late hatch 99.6 incubating an 46 humidity till day 18 then 65 to 70 % whats going on I recalibrated the temps due to shipping never had this problem with my older brinseas 20 advances