[Amjak]

Ugoos AM6+ can fill process FEL (EL + RPU). It has S922XJ SoC witch can simultaneously process several HEVC-stream. But now some troubles with your Kodi DV-mod: sometimes HDR-resinc during playback DV-FEL and glitches with rewind.

The just player or the vimu Video player don't have any glitches, as long as passthrough is not activated, or any true-hd sound track is selected

Which isn’t really useful is it?
Lack of HD audio puts us back at square one on this quest.

Of course, you are right. It depends on what setup you have, I only have a Dolby Atmos soundbar, it doesn't make much a difference for me if I use the dts, ac3 or the true-hd soundtrack.
But if you own a true dolby atmos speaker setup it's of of course a great loss