Plex Android does not explain to a user that it cannot stream locally downloaded content

Plex Players
,
1

Server Version#: 4.114.3
Player Version#:9.30.0.3604
<If providing server logs please do NOT turn on verbose logging, only debug logging should be enabled>
On more than one occasion when I have been attempting to use the plex mobile app I’ve been confounded as to why it refuses to stream to my chromecast-audio device.

It turns out that there’s something that makes this infeasible, but I don’t know what, and there seems to be very poor error handling/signaling this state to a user.

2

Plex Documentation → Downloads for Offline Use → Downloads FAQ

Can I cast/fling downloaded content to another Plex client or through Chromecast?

Casting or flinging downloaded content to another device is currently not supported.