I'm looking into it.

I believe there is a problem with the function that calculates the new Diff.   It went from 0x251323ff  to 0x2448a3ff

Before: 251323ff  0000001323FF0000000000000000000000000000000000000000000000000000000000000000000 0
After:  2448a3ff  0000000048A3FF00000000000000000000000000000000000000000000000000000000000000000 0