Axiom Home Page Forums General Discussion The Water Cooler Left channel

I had a weird problem today. Thankfully unplugging my avr fixed it.
I'm curious to know if anyone else has had the same issue.
After completing another "speaker placement tweak" session I ran a YPAO calibration and sat down for some casual listening.
I had checked the results after I ran YPAO and everything was typical, no big surprises.
I ran a few CD's through, watched snippets of a few movies and played a quick round on WarThunder. Everything was typical, surrounds and rear surrounds a little loud/distracting for my taste.
I turned on the Db app and started with the front three. The Db meter suggested the front left channel was -10db from the other fronts and it was quieter.
I started to panic.
Wtf just happened.
I turned it off. On. Same.
Again.
Same.
I through my hands up and thankfully my brain kicked in, I unplugged the AVR and amp and had a coffee upstairs.
It worked, crisis averted. Now, why might this happen and is it a symptom of an upcoming complete failure of the AVR or amp?
Thoughts?

I had a similar issue with my AVR a couple weeks ago think I moved an HDMI cable and NO sound came out. Played with settings and such but nothing happened. The next day tried unplugging it And problem solved.

Think it just felt lonely and needed a reset, possible it's chip was just stuck somewhere.

Could coiled speaker wire cause this?
Just thinking....I hadn't actually disconnected the L,R or C at either end but I had moved my excess wire at the time (I originally cut long as I was planning on hidding behind the base boards and cut the all the same length because I like to waste wire).
There is a small pile, maybe 10' between all three, sitting in a small loose but sum what coiled pile.
Installing these behind the base and cutting off the excess is still, obviously, on my to do list.

No. An assembled audio cable with paired conductors is meant to counteract inductance caused by any inadvertent coiling. There is no relative motion between the conductors when the flow of current opposes each other. A single conductor in a coil is another issue (an inductor).

Hmmm.
So I can put it off some more, lol.
I might leave it but seperate each cables extra lenght/pile/coil in case I need a few more feet at either end.
You never know when you might move your speakers.
Lol.