To all who care This the response from Yamaha Australia on the 2 last features missing from this receiver
Thank you for contacting Yamaha Music Australia.
Denon dont seem to have an issue in there Amps.
Once again paid for items that were promised and never delivered.
As stated on the product page:
"YAMAHA initially intended to support QMS (Quick Media Switching) within the HDMI 2.1 specification. However, YAMAHA later discovered that these models cannot be updated to support QMS via firmware. This is due to an unforeseen hardware limitation caused by QMS specification change in HDMI 2.1a. This hardware limitation affects current AV receivers, including Yamaha."
This was due to an issue with the manufacturer supplying the chipsets. As all manufacturers use the same chipset supplier, it means all brands are affected.
We apologise for any inconvenience.
Regards,
Yamaha AV Sales Support