Hy,
my chromecast is working fine with any other chrome app. But if i try to send a video with videostream, the sceen will turn black. Then i get the message Error sending contents... Please try again.

LAUNCH_ERROR is visible in debug logging. Ive tried uninstalling cast and videostream app. Also updated chrome to latest version. And restartet computer. Nothing helped.

Any idea? I am running latest OSX.