Hi @rjt246, The smartthings platform have problems, the commands are launched twice, this can crash some mediarenderers, I hope smartthings fix this problem soon.
You can try to increase the delay between actions to avoid crash with this double commands.
Android apps works fine, but some do not send the status to device type correctly, I´m working to patch this, I hope to launch this patch today.
I have test some old android phones (v 2.2) with private dancer and works great (still patching the refresh status), it does not have metadata to show the message or track info, but, it can play all music and sound I have send it, if you have android 4.1 and up, you can try upnp monkey, it works great too
I have test bubble but it crash frequently
what mediarenderer app for android are you using?