I was playing some music tonight and noticed the sound from my left speaker didn’t sound right. The rear speakers were not playing at all. Checked all of my connections and everything was fine. I unplugged the speaker wire to the rear and from the amp and plugged it back in and the sound came back on. Still getting a hum from the rear speakers. It’s making me wonder if something isn’t going on. Anyone ever have something similar happen or anything I should check?

LFR1100
VP180HP
EP600
M3 In Ceiling x 4
M5OW
M2 - Atmos rears
ADA1500.5
M3 Outdoor Speakers
ADA 1000.8