To me sounds like your humidity was off. The gauge your using now is one of the worst tools you can use to measure humidity, just poor quality.
What also may help is next time she is going through shed, pick up some of this stuff, get it nice and wet, just enough that it is not dripping, and put it under the hide that is above your UTH, this creates a very nice humid hide.
http://amzn.com/B001B5DKN2
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