Having some issues with a new setup, help!

[mordeckai]

Hi
After a long time I did an upgrade on my modest home theater, I changed my LCD 32 inch TV to a 4K LG 50 inch TV and my Denon AVR 1611 to a AVR X580 BT.
Now I am having some strange issues with my PS5 where I sometimes lose signal for a few seconds, and it is intermittent, sometimes it happens constantly and sometimes it does not happen at all.
I already changed the HDMI cable and tested plugging it in on a different port with the same result
I suspect it is something to do with the HDMI Control or CEC but I am at a loss as to what exactly
Any help would be greatly appreciated
EDIT: Only workaround so far that appears to be working is that I turn off all HDMI control features on the AVR, the downside is just the minor inconvenience that whenever I turn on the TV first then the AVR, the ARC setting for the TV Audio gets reset to the TV speakers