Cannot cast a live streaming (android IP webcam) to google nest hub

Hi, I have an android phone which I use as webcam in HA through the integration “android IP Webcam”. I have a dashboard with a “picture entity” card that live streams the webcam video. I can correctly see the stream on my desktop pc or smartphone, but when I cast the dashboard to my google nest hub 2, instead of the video stream it is displayed a placeholder static image. All of the other cards of the dashboard are displayed correctly. What am I doing wrong?

I’m running HA core on a RPI4, with Nabu casa.