My advise, leave them be.
The egg whites turning funny colors isn't going to hurt them this late in incubation.
They are already fully developed
And also. Was the temps steady at a certain temp or was there fluctuations of 87-90?
If there were than that could lead to slower development.
But don't panic. They are fine.
As balls always do, they will do when they feel like. And not a moment before.
Also, a day after cutting and they haven't come out is not a surprise.
They may stay in there for a week just because they feel safe. Don't panic until you hit over a week and no "coming out" occurs.. maybe a little less than a week. Ya get ma drift?
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