Problems with the Marshall Code Gateway app music playback feature noticed on a Samsung A3 (2016) smartphone running Android 5.1.1.

1) The currently loaded tune name is usually not updated on the display when switching to a new tune. I say usually, because I've seen it change on a couple of occasions. The album graphics however appear to change as expected, regardless of the tune name displayed.
2) The volume control slider on the display defaults to about 1/5, however the output seems to default to full volume. Moving the slider upwards immediately drops the volume significantly, and it does not even seem to reach back to the intial volume level with the slider in the rightmost position.
3) At least on one occasion there was some skipping in the playback of the tune and noticeable tempo changes while adjusting the output volume using the app slider. Might also have been caused by moving around in the room with the smartphone in hand.

My Samsung tablet pairs with my CODE 50 but Gateway app will not change the amp settings. It works properly with my Motorola smartphone. Both are Android.

When i try to play a track to my Code 25 using gatway on my motorola droid turbo 2 running android 6.0 the search window opens but remains blank other then the ok and cancel buttons at the bottom. Please help. thanks!

I updated the gateway app 5 minutes ago to latest version - my phone is an moto g (gen2) running android 5.0.2. The app worked sort of ok on previous version but now its giving a message as follows.

      "Screen not supported - tThe minimum screen size is 640x960" 

From what I can see under the message though looks to me ok I can see "00 EL34 Heaven" and all the initial presets not covered by the message but thats it nothing works so I guess thats it after about 2 and a half weeks of being apple to control from the app I now find that I cannot do anything from the app.

Any ideas what I need to do next.