Yep, another one
So, amp input is Vero4k+, choose suspend, switch AVR to blu-ray (which is off). AVR goes into standby due to no signal.
Turn AVR back on, Vero4k+ turns on and AVR input switches.
None of my other CEC enabled equipment behaves in the same way. It’s more a niggle than anything but I expect the vero to stay in suspend until I manually activate it.