Someone send an email a few days ago with the same issue. But before I could answer he had reset the 4G by staying 10 seconds on the call button.
I didn’t even know we could do that for just the 4G reset. After that the app updated again
I find it keeps happening when they prepare for a new update. As if they update one server at a time and we are not all impacted at the same time
It`s working again ! Thanks