They were from the same print run and the defect appears to be something on the discs being incompatible to some machines. Australia seemed to have no problems, but UK area had issues. (Sounds a lot like what happened with the Haruhi Movie and why it didn't get released on BD in the UK.)
I've had 4 copies and all of them didn't work for me. 2 copies for me an an acquaintance each, we returned them, got outselves new ones, still the same. We didn't bother to try any more copies, after MVM said, it concerns all of them. I went to get the Sentai ones afterwards and kept the UK one for the artwork.