Not sure what you are looking for. You want anecdotal experience, instrumentation errors, the laws of physics are what they are, for water to be frozen it requires the molecule to be below 32f. If it's not melting until it touches 33f ground or plane, so be it. My position utilizes the easily accessible manuals that the company created and the FAA approved, and as such, clearly(or not so), defines the Ground Deicing Program. Push this stuff to the limits and one might be a future training bulletin.
How many GA/91 turbine crashes this years winter season due to icing?