V 4.7.1
when deleting a waypoint, all other waypoints vanish from the map. The vanished ones are still there, not deleted. But in order to see them again, the collection has to be switched off and on again. Switching them off an on leads to another bug which exists for some time. The switched of collections should be grayed out, but they stay red. Reloaded the phone, deleting and reinstalling, logging out and in, nothing helps.
I made videos of both bugs.