Roku app not always ending live TV streams?

[flashls82 5]

I've noticed a few times recently where even after I exit a live TV stream on the Roku app (normal exit, not a crash or anything), the stream keeps going -- I use HLS Proxy for buffering and I can see it still feeding things in an active connection to the Emby server for more than an hour after I've exited the Roku app. I haven't noticed this happening via the web interface or iOS apps. Server admin console does not show the stream playing. I can share logs but there is nothing obvious I see in there since this is really the absence of something happening (closing the stream). Sharing in case this is a bug worth looking at vs. anything idiosyncratic with my setup.