Symfonium doesn't want play music upnp from plex nas

Issue description:

Recently I use symphonyium for playing my music. Music goes via Plex Server on Synology NAS.
Symphonium does not want to start the music. Yatse works smoothly. I have uploaded a log under the name Erikie
Problem is on tablet on my smartphone It’s works fine.

Logs:

Upload description: erikie

Additional information:

 

 

Reproduction steps:

 

 

Media provider:

Plex

Screenshots:

     

You probably added the provider in a different ways.

Triple check that both devices and Yatse have the same settings to connect to Plex.

Settings are the same otherwise I cannot reach the server either. The strange thing is that symphonium often has difficulty starting a song or album. Are there any more settings that can be adjusted in particular in symphonium?

No there’s many ways to connect to Plex that can work differently specially with Plex relays …

Could be the transcoding settings or anything. Plex returns error 500 check Plex logs too.