Push behavior in latest CLI

Hi,
Today i have upgraded my ionic cli from 1.7.8 to 1.7.10.

Starting from the upgrade, i get strange behavior in the Push .
If i am working in Chrome in Emulated Mode, the register function does not call the callback.
If I am working in Chrome in regular mode, just in a responsive size, the register function returns but i get different device token every time.

Has anyone experienced it as well?