Oh completely… I tried a lot of different humidity and temp combinations before finding the perfect one… I probably should have added that I am in aust and my incubator was in my room which does have quite a number (4 at the time now 3) fish tanks that host tropical fish…
Your issue is your humidity and temp for these breeds… Cayuga needs a humidity of around 40% for the 1st 2 weeks slowly increasing to 60% for hatch… with a temp of around 36.5 (degrees Celsius) and slowly increasing to 37.5 (degrees Celsius) for hatch… I have hatched cayugas at a 100% hatch rate...