Why I can't mirror video on android phone to RaspPI3 with OSMC?

When I select PNP/DLNA settings to on, I can find osmc device in android phone.
But when I mirror it, there isn’t any video in TV screen.

Is there any debug log I can refer to?

Thank you very much!

Hello,

You can enable debug log by going in :
Settings > System > Logging
Enable component-specific logging by selecting “Verbose logging for UPNP components”
Then enable debug logging.
Connect to osmc using ssh, and type :
tail -f /home/osmc/.kodi/temp/kodi.log
Finally try to mirror something from your phone and check the logs.