V2565 on RPi 3 B+
Contolling Volumio via Bubble Upnp from an Android phone the playback sometimes stops after the currently played track and is nor continued with the next track from the playlist.
Using BubbleUpnp Server emulating Volumio as openhome renderer, tracks are played for one second and then next track is played for one second and so on.
Downgraded to 2.5.5.5 and everything works well again!