Pops in digital audio when you stop a movie (or other playback) on Vero 4K

I have noticed after playing music or movies; for example 5.1 material; when clicking stop - there comes a pop in the sound (audio sent over HDMI direct throughput). I have multiple other devices including an Apple Mac Mini running Windows10 and Kodi were this is not a problem; no problem on Apple TV 4K or multiple blu-ray players.

Audio processed by Marantz AV8802a.