I’m also having this kind of slight HDR flicker on clear zones as skies and similar…
Using Vero 4K with January update and a Philips 50PUS6162/12. Using the TV’s internal USB mediaplayer HDR files playing is perfect with no flickering.
Used this file to test:
As I said, no flicker using usb player, flickering using Vero 4K. This happens with all my 4K HDR movies.
Video recorded with my smartphone (Blade Runner HEVC Remux 2160p HDR):