I was a little puzzled with the odd white balance with the Ricoh GR. I was using 7.4 on my production machine and 8.1 on my laptop.
For the same DNG raw file from the Ricoh GR, observe the huge difference in thewhite balance: the profile reads 4100°K +8M and the profile reads 5650°K +12G. That’s not a subtle difference, so which setting is used is critical.
It turns out that the difference is related to the choice of camera profile in ACR 8.1 (43) beta; version 7.4 has no such choice.