I just started to program my MX-780 for a 2018 Vizio P-Series. Discrete inputs seem to be working if the Vizio is first powered up. If I select Apple TV, the Vizio turns on, followed by a 10sec delay, HDMI 1 is selected Apple TV starts. Now, if I want to watch a blu-ray from here, I have a variable macro programmed. I push blu-ray and my AVR along with my blu-ray player start up, there are delays programmed but the Vizio will not switch to the according HDMI input. If the system is all powered down after say watching Apple TV than restart by pressing blu-ray everything turns on appropriately and the proper input gets selected.

Any ideas as to what I may be doing wrong or overlooked?

Thanks