Issue on node Label Vertical Align

Hi,
I’m new to Cocos Creator and I’m trying to implement a simple Facebook Instant Game.
If I set Vertical Align to Center it’s working ok on Cocos Creator IDE (v1.9.1) and on Chrome Desktop but when I publish it on Facebook Instant Game and try it from Facebook Messenger all the label are shift down.
I actually found a workaround by setting the Vertical Align to bottom and manually align them.

Is it a know issue?

Also, is it possible to test on Android without have to publish it? Is Facebook Messenger using System WebView on Android?
Would it be a good idea to use Cordova to test the game directly during development?