Ion input field autofill issue

We are having a strange problem in ios,
We have two fields in login email and password,
If user select email and try auto fill the emails get filled automatically but the password field shows ***** but if we submit or click on the field it vanish.
Same thing happens when we click password field and try to auto fill ,password gets auto filled though the email filed shows the value but when we tap the field its vanish.

We using ionic 3


ionic (Ionic CLI) : 4.8.0 (/usr/local/lib/node_modules/ionic)
Ionic Framework : ionic-angular 3.9.5-201905161949
@ionic/app-scripts : 3.2.3


cordova (Cordova CLI) : 8.1.2 (cordova-lib@8.1.1)
Cordova Platforms : browser 5.0.4, ios 4.5.5
Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.1.0, (and 23 other plugins)


NodeJS : v11.6.0 (/usr/local/Cellar/node/11.6.0/bin/node)
npm : 6.5.0
OS : macOS Mojave
Xcode : Xcode 10.2.1 Build version 10E1001