Airplay Pole TV 4th Gen - BeIN Connect

Hi. I’ve a strange problem with AirPlay. BeIN Connect streams TV in the Middle East. It’s screen on iPhone does not have airplay icon but I can usually call up control centre and click on the ‘broadcast’ lines in the corner. However, now when I do it I just get audio. No video. I have tried everything. Resets, internet reboots, etc. Any fresh ideas?

Thanks everyone.

Mat