I did the transfer a few hours ago so I doubt it's overheating - feels cool to the touch, same as the 14PM...Weird, I can’t get my 14PM to look as washed out as the left one on the same settings
If you think there’s something wrong with it, why not go exchange it? Stores keep stock for exchanges. And Early Field Failures have a name because they exist.
Last thing: you haven’t recently just completed data xfer or something, right? They may throttle brightness when overheating etc.