Well if it only happened one time, like he mentioned in the original post, maybe no big deal.
For a real unsettling bug, if you use airplay with the app controller and turn off with the button or remote, sometimes the iPhone will power the Yamaha back on. This actually startled me the first couple times
. I was able to do this on the 2060 but not the 770 or 681. So my mitigation is I set the volume in power on to a low volume. Anyhow since the last update of firmware, it hasn’t happened.