I'm writing to seek further advisement. To be honest, my gut suspicion is that this is an ME issue, or possibly a Cyberlink issue. Before installing the ME fix, there had been some playback issues under certain circumstances. For example, when trying to watch UHD discs (and Netflix using various apps and browsers), the video would drop out every few seconds, like a handshake had failed and needed to be done again. Something about the ME fix might have been the fatal blow. To be clear, before the ME fix was installed, the new display driver had dropouts but I was able to play back UHD discs, even if the end result was essentially unwatchable. I suppose it's also possible Cyberlink's software is missing something subtle that changed.
As a troubleshooting step, I reinstalled my older display drivers. No luck. HDCP 2.2 was still broken. So, it's almost certainly an ME issue, unless some software elsewhere needs to be updated. I'm checking with the Intel forums and figured I should check here too.
Here's what I consider to be the relevant portion of my setup. There's other stuff but I don't think it's relevant.
ASRock Fatal1ty Z370 Gaming-ITX/ac motherboard (1.11 beta BIOS)
Coffee Lake i7-8700 CPU
LG WH16NS60 Ultra HD Blu-Ray drive
Windows 10 (1709 - fully up-to-date)
PowerDVD 17 Ultra (fully up-to-date)
Intel UHD 630 driver version 15.60.0.4849
Intel ME consumer driver version 11.8.50.3425
No discrete graphics cards
Thanks!</div>
This message was edited 2 times. Last update was at Nov 28. 2017 12:19