Ionic Deploy - app hangs after extract/load

Ionic Framework ionic-v3
1

I’m trying to live update my Ionic 2 app using Ionic Deploy.

import { Deploy } from '@ionic/cloud-angular';

...

ngOnInit() {
    if (env === 'cordova') {
			this.deploy.check()
				.then(snapshotAvailable => {
					if (snapshotAvailable) {
						this.deploy.download()
							.then(() => this.deploy.extract());
					}
				});
		}
}

I deploy and run the app with cordova run android, start the Chrome Inspector with USB Debugger and read the console.

Ionic Deploy finds an update, downloads it and extracts it. No problem.

But, the next time I start the app it hangs on the splash screen, no console output and nothing happens.
In the URL I see that it switched to file://…/app-UUID/index.html, so everything looks right.

"@ionic/cloud-angular": "^0.9.1",

ionic -v 2.2.1
cordova -v 6.5.0

<plugin name="ionic-plugin-deploy" spec="~0.6.5" />
<plugin name="cordova-plugin-device" spec="~1.1.4" />

This is the console output

DEVICE READY FIRED AFTER 1785 ms
Ionic Deploy: an update is available
Ionic Deploy: download complete
Ionic Deploy: extraction complete

After extraction it hangs. Any ideas?

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