FWIW I have a Denon AVR-X3600H that I purchased in 2020. It handles native DSD from my Oppo 203 over HDMI just fine. I play multichannel content including via native DSD daily.FYI - many receivers including all but the highest end of popular, mainstream brands such as Denon cannot play SACDs via the HDMI port. I found this out the hard way with my Denon X3600h (which retailed for $1000+ and can't play the files). Apparently there's a licensing fee associated with playing SACD files (known as DSD files) over HDMI that nobody wants to pay (well expect Sony...b/c they ARE the licensor of DSD). So check to make sure how your player is connected to your receiver. If connected via HDMI, try a different method (coaxial audio, SPDIF, etc).
Maybe we can help you debug this?
Here’s mine playing BST: