I got rid of JRemote months ago on my Android, because it would only play one track, then stop. I would try a second time, and it usually worked. I used Gizmo, and had the same problem, but less often. Thanks to another forum member, I tried BubbleUPnP, which works a bit better, but the app is too confusing.
Re-installed JRemote on my Android, and it's even worse! Absolutely one track, then stops. Over and over again, on my Moto X Pure Edition (Marshmallow). I thought maybe it's the Chromecast connection, but tried it just playing on the phone. Consistently stops after one track. I finally even got it to say, "Unfortunately, JRiver has stopped" (which was what was happening anyway).
Checked my network, and not having any problems with the connection (I sat in one place in my kitchen the whole time). I deem this product not working on my Android.