Umbrella has now accidentally released two different region-locked UHDs: Razorback and The Last Wave It was indeed an error on their part, and they offered a replacement program for both. So it definitely can and does happen. But there's more than a dozen of other UHDs so far that have been...
I've mentioned it elsewhere on these forums, but while it may anger some people to hear this, there have been studies that demonstrate that human memory operates differently with color than it does with other things. Our brains can distinguish nuances between shades, but our memory doesn't store...