Fab button not working after resume on Android

Ionic version: (check one with “x”)
[ ] 1.x
[ ] 2.x
[x] 3.x

I’m submitting a … (check one with “x”)
[x] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or http://ionicworldwide.herokuapp.com/

Current behavior:
I built with the latest 3.2 Ionic code, with Angular 4.1.0, cordova 7.0.0 on Ubuntu 16.04 with Android 25 SDK, when I switch app then switch back to my app on an Android 7.0 Galaxy Note 5 phone, the fab button just stops working.
It doesn’t show fab list after click fab button, no response at all.

Haven’t tested on iOS yet.

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

Cordova CLI:7.0.0
Ionic CLI: 3.0.0
app-scripts: 1.3.7
ionic-angular: 3.1.1
Node: 7.10.0
Linux 4.4