unable to debug on ios device "ionic cordova run ios" missing .ts files

[adsoftmike]

Short description of the problem:

when I use "ionic serve" I can see all of the .ts files in Chrome Dev Tools.
When I debug on an ios device by running "ionic cordova run ios" in Safari Web Inspector I can see .ts files for /src/app and /src/environments but that is it. No .ts files for any page sub-folders (i.e. /src/app/home). Therefore unable to debug.

What behavior are you expecting?

When running/debugging on a device I would expect to see all .ts files in /src/app and all sub-folders of /src/app like I do when using "ionic serve"

Steps to reproduce:

1. ionic start myApp tabs
2. ionic cordova platform add ios
3. ionic cordova run ios
4. open Safari Web Inspector
5. on Debugger tab, expand Sources --> main-es2015.js --> src --> app

Missing .ts files like /src/app/home/home.page.ts

Which @ionic/app-scripts version are you using?
3.2.4

Other information: (e.g. stacktraces, related issues, suggestions how to fix, stackoverflow links, forum links, etc)

Ionic:

Ionic CLI : 5.4.13 (/Users/michaelcrofut/.nvm/versions/node/v10.10.0/lib/node_modules/ionic)
Ionic Framework : @ionic/angular 4.11.7
@angular-devkit/build-angular : 0.801.3
@angular-devkit/schematics : 8.1.3
@angular/cli : 8.1.3
@ionic/angular-toolkit : 2.1.1

Cordova:

Cordova CLI : 9.0.0 (cordova-lib@9.0.1)
Cordova Platforms : ios 5.1.1
Cordova Plugins : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 4.1.3, (and 4 other plugins)

Utility:

cordova-res : not installed
native-run (update available: 0.3.0) : 0.2.9

System:

Android SDK Tools : 26.1.1 (/usr/local/share/android-sdk)
ios-deploy : 2.0.0
ios-sim : 8.0.2
NodeJS : v10.10.0 (/Users/michaelcrofut/.nvm/versions/node/v10.10.0/bin/node)
npm : 6.4.1
OS : macOS Mojave
Xcode : Xcode 11.0 Build version 11A420a