Yes. Govee thermometers/hygrometers verified my incubator was spot on. I ordered a dozen dewlap buff Tolouse eggs. The seller graciously provided 14 eggs. At 10 days in I candled and every single egg was saddled and almost all had air sac moved. I’ve incubated goose eggs for 4 years with the same unit and never had this happen, I was very disappointed. I am glad I got 6 goslings from the hatch. Tried to save a few others but didn’t work out.Then id say maybe an issue with the incubator, do you have an extra thermometer in the incubator to help verify temps?
I did see some people saying to set the vertically instead of in their side. I rested on the side and wish I had done a few vertically to see if it made a difference.