That’s what I did, I’m only using eMMC, not SD card.
After investigating the issues, it seems there’s something with the setup N2+ > AVR (Marantz) > TV. But it’s strange that the issues didn’t occur with legacy version.
Best choice will be fallback to stable version 19.3 and wait for final 19.4
CE 19.4rc1 & rc2 was removed by developers, there are some issues.
I use nearly the same setup:
N2+ → DENON AVR → 4k TV
Configured CEC on N2 and HDMI Setting on TV
It possible something different.
I couldn’t repeat your issue also.
Try to set Use 4:2:2 colour subsampling option and reboot, try different cable, check that HDMI port on TV configured correctly(if it different than in working solution)
I’ve checked and indeed the AVR was not connected to the good HDMI input (I don’t know how it could have worked before).
The input was maximum 4k @ 30fps, and now it’s 4k @ 60fps.
Thanks anyway for your help!