I had one egg out of the 9 clutches I had this year dimple. The humidity is just a bit too high, that's all. As long as the eggs are fine I would not worry. I did cut all of my eggs this year though because I didn't want to take any chances at babies drowning due to high water content. I'm not saying they would drown, I was just taking precautions. If you do cut, I would wait till day 55. I have done it sooner and the egg tend to do better once cut at that point.