Problems with Airplay on Samsung TV?

Question

Samsung

There is a tv samsung ue24n4500. And it shows the old behavior of airplay
, namely:
content from apps and browser. Those. screen duplication works, music transfer too, but when you start a video from the Internet (videos that are in the photo section on the device are played) it starts as if downloading to you on a black screen and so on ad infinitum, on the device itself, the time countdown goes on, as if the video is running, but actually no.