iOS app stuck at splash screen for latest Cordova Platforms

Ionic Framework
1

I was trying to solve ITMS-90809: Deprecated API Usage - New apps that use UIWebView are no longer accepted when deploying to App Store.

I upgraded Cordova Platforms to ios 6.1.1,
cordova-plugin-ionic-webview to 5.0.0, for Wkwebview.

Finally, I can build successfully.

However, when I run as iOS app by Xcode, it stuck in splash screen and cannot go to other pages…
No error log is found. But I can found below logs when I open the app from background.

2020-10-22 23:00:06.619640+0800 MyApp[19806:3697502] CDVWKWebViewEngine shouldReloadWebView::

2020-10-22 23:00:06.619753+0800 MyApp[19806:3697502] CDVWKWebViewEngine shouldReloadWebView title: Ionic App

2020-10-22 23:00:06.619786+0800 MyApp[19806:3697502] CDVWKWebViewEngine shouldReloadWebView location: ionic://localhost/walkthrough

2020-10-22 23:00:06.619809+0800 MyApp [ 19806:3697502 ] CDVWKWebViewEngine shouldReloadWebView reload: 0

Below is my information

Ionic:

   Ionic CLI                     : 5.4.13 (/usr/local/lib/node_modules/ionic)
   Ionic Framework               : @ionic/angular 4.11.7
   @angular-devkit/build-angular : 0.13.9
   @angular-devkit/schematics    : 7.3.9
   @angular/cli                  : 7.3.9
   @ionic/angular-toolkit        : 1.5.1

Cordova:

   Cordova CLI       : 9.0.0 (cordova-lib@9.0.1)
   Cordova Platforms : android 8.1.0, ios 6.1.1
   Cordova Plugins   : 
    "cordova-plugin-badge": "0.8.8",
    "cordova-plugin-camera": "4.1.0",
    "cordova-plugin-datepicker": "0.9.3",
    "cordova-plugin-decimal-keyboard-wkwebview": "1.0.4",
    "cordova-plugin-device": "2.0.2",
    "cordova-plugin-ionic-keyboard": "^2.0.5",
    "cordova-plugin-ionic-webview": "^5.0.0",
    "cordova-plugin-local-notification": "0.9.0-beta.2",
    "cordova-plugin-splashscreen": "6.0.0",
    "cordova-plugin-statusbar": "2.4.2",
    "cordova-plugin-telerik-imagepicker": "2.3.3",
    "cordova-plugin-whitelist": "1.3.3",
    "cordova-plugin-wkwebviewxhrfix": "0.1.0",
    "cordova-sqlite-storage": "3.3.0",

Utility:

   cordova-res : not installed
   native-run  : not installed

System:

   ios-deploy : 2.0.0
   ios-sim    : 8.0.2
   NodeJS     : v12.14.1 (/usr/local/bin/node)
   npm        : 6.13.4
   OS         : macOS Catalina
   Xcode      : Xcode 12.1 Build version 12A7403

Thank you.