Server Version#: macOS / Plex Server 1.13.5.5332
Player Version#: AppleTV Plex App (latest)
I have created some collections for music via the Web App - all looks ok there. However, when I browse to the collection on Apple TV or a UPnP client (8player on iOS) the collections are empty.
Actually the problem is worse than that. My player (a Naim Uniti) refuses to play anything from Plex DLNA anyway. My player doesn’t give any specific errors, so not very useful.
Other UPnP / DLNA servers work OK such as Asset UPnP.