Popping sound when switching source on monitor. (Astro MixAmp Pro TR)

Hi! First off, lets get through how my setup is setup

So I have an Astro MixAmp Pro TR hooked through the optical cable from the MixAmp to the PS4 and then from the USB port of the MixAmp to a USB port on my PC. And I am using it like this so I can listen to music or talk to my friends on PC while playing games on PS4 at the same time.

So with that out of the way, here's my 'issue', I have been noticing that when I switch source on my gaming monitor I can sometimes hear a popping sound in...

Popping sound when switching source on monitor. (Astro MixAmp Pro TR)