Issue with Apple TV 4K and Yamaha TSR-7810 using 4K HDR 60 Hz

First, let me give explain my setup.

Source: Apple TV 4K

Reciever: Yamaha TSR 7810

TV: Sony XBR65X900E

Cables: 48Gbps Belkin Ultra High Speed HDMI

Apple TV is connected to Receiver's HDMI input 1

Reciever's HDMI Output 1 is connected to TV's HDMI 3 input

My problem is as follows: I am unable to see 4K HDR 60Hz video from the Apple TV to my TV through the Receiver.

4K HDR 60Hz 4:4:4 works just fine when the Apple TV is connected directly to the TV. Using both 18Gbps and the new Belkin 48Gbps cables I just picked up from apple.

Both the Receiver and Apple TV have been updated to their latest Firmware and tvOS

The Receiver is in Mode: 1 and using "Processing -> Through" in the video settings as these are two things I have read to check while researching this issue.

I would love any help I can get with resolving this issue.