When you have no signal, do not use Home. Use the offline player.
- While online, download the sessions you need.
- Open the offline list once so this phone remembers Marketown.
- Later, with no signal, open that same offline page from a bookmark or home-screen shortcut.
- Play from the list.
The offline player does not load your full library. It only plays what you already downloaded on this device.
I opened the main app offline and it failed.
That is expected. Use /offline/marketown instead.