White screen Ionic 4 tabs

Hello everyone,

I’m creating an update for my app using ionic 4. It’s all working fine in the browser, but it’s giving a white screen when installed.
This issue looks like it, but it’s older and the solution (Like upgrading to beta 7) are irrelevant since I’m on the latest beta: https://github.com/ionic-team/ionic/issues/15282
The issue referenced: https://github.com/ionic-team/ionic/issues/15038 does not really look like it.


This is the actual error / white screen (Emulator is Android 8, my phone 8.1)

{
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "http://ionicframework.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "~6.1.1",
    "@angular/core": "~6.1.1",
    "@angular/forms": "~6.1.1",
    "@angular/http": "~6.1.1",
    "@angular/platform-browser": "~6.1.1",
    "@angular/platform-browser-dynamic": "~6.1.1",
    "@angular/router": "~6.1.1",
    "@ionic-native/core": "5.0.0-beta.21",
    "@ionic-native/native-storage": "5.0.0-beta.21",
    "@ionic-native/splash-screen": "5.0.0-beta.21",
    "@ionic-native/status-bar": "5.0.0-beta.21",
    "@ionic/angular": "4.0.0-beta.12",
    "@ionic/storage": "^2.2.0",
    "cordova-android": "^7.1.1",
    "cordova-browser": "5.0.4",
    "cordova-plugin-device": "^2.0.2",
    "cordova-plugin-ionic-keyboard": "^2.1.3",
    "cordova-plugin-ionic-webview": "^2.2.0",
    "cordova-plugin-nativestorage": "~2.3.2",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.2",
    "cordova-plugin-whitelist": "^1.3.3",
    "cordova-sqlite-storage": "^2.4.0",
    "core-js": "^2.5.3",
    "rxjs": "6.2.2",
    "zone.js": "^0.8.26"
  },
  "devDependencies": {
    "@angular/cli": "~6.1.1",
    "@angular/compiler": "~6.1.1",
    "@angular/compiler-cli": "~6.1.1",
    "@angular/language-service": "~6.1.1",
    "@angular-devkit/architect": "~0.7.2",
    "@angular-devkit/build-angular": "~0.7.2",
    "@angular-devkit/core": "~0.7.2",
    "@angular-devkit/schematics": "~0.7.2",
    "@ionic/ng-toolkit": "^1.0.0",
    "@ionic/schematics-angular": "^1.0.0",
    "@types/jasmine": "~2.8.6",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~10.11.3",
    "codelyzer": "~4.4.2",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.0",
    "karma-jasmine": "~1.1.1",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~2.9.2"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-nativestorage": {},
      "cordova-plugin-whitelist": {},
      "cordova-plugin-statusbar": {},
      "cordova-plugin-device": {},
      "cordova-plugin-splashscreen": {},
      "cordova-plugin-ionic-webview": {},
      "cordova-plugin-ionic-keyboard": {},
      "cordova-sqlite-storage": {}
    },
    "platforms": [
      "browser"
    ]
  }
}

As I cannot find any issues still open, who can point me in the right direction?

Thanks!