Custom mini media player only shows artwork on idle

Hi, I’m relatively new to HA and I’ve been googling this for days with no answer. Apologies if there is an obvious post I’ve missed. When I’m using Disney+, Netflix or BBC IPlayer on my nvida shield, the artwork will only display when the shield is idle. I feel like its a HDCP issue but I cant find the answer. The shield connects to my Yamaha musicast soundbar, then the soundbar to my samsung TV. Thanks in advance for the help.