Playlist and StreamAlias

Hello, I have a basic problem when using pLaylist together with "hasstreamalias". I created a Playlist and if a configured "hasstreamalias=false" all is working is it would. Which means .lst ist configured well and the live and files inside the .lst are fine, too. When I enable "hasstreamalias" inside the config I am unable to access the Playlist. When using the "playlist.lst" name it´s not accessable. When doing "addstreamalias" and using the streamalias to access, it´s not working. How can I access a playlist when using streamalias on the EMS ? WHen I use/play a playlist i don´t see it as in or outgoing stream listed. So there is no ID and no way to make "read requesT via the API" . Does it means that playlist is internal and just doing he mapping between the origin and the edge? Kind Regard, Uwe