Google Push Notifications does not work in Flyme7 with all rights enabled (

Some apps (Facebook/Instagram/Telegram) receive push notifications that are sent by Google Cloud Messaging service: https://en.wikipedia.org/wiki/Google_Cloud_Messaging
Especially this is used when the app is not running on the device and does not have an active connection with it's own server.
Registered a bug here: http://forum.flymeos.com/thread-43563-1-1.html