New 3 UI link in the android OH App

I just upgraded my working OH server to 3.
The New UI link does not appear in the sidebar of the Android openHAB application (last version).
I did another test with the openHAB Beta application (last version). The link appears when I am in the local network (direct connection to the OH server) but disappear when the application is connected via the myopenHAB cloud.
Please Help !