I have noticed that i must check the site almost every day. When I got through my phone sometimes it lets me go to the main site. The only way I can get it to start switching again is by deactivating the plugin and reactivating it.
But when i do this the mobile version definitely pops up b=BUT it pops up the mobile theme everywhere, including all desktops. I know I probably have some setting wrong or something. I can get you admin privileges is you need to take a look.