I had a similar issue when dealing with a 3D HyperBall mesh.
I realized the problem was that the face I was trying to measure was not 
planar enough.
There's a tolerance condition that has to be fulfilled at this line of the 
measure function.
https://www.dealii.org/8.4.0/doxygen/deal.II/tria__accessor_8cc_source.html#l01000
I reimplemented the function with less tolerance and it had no problem.

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