Graphical artifacts / horizontal stripes in Home Assistant Android app after Android System WebView update

After a recent update, I started seeing graphical rendering issues in the Home Assistant Android Companion App.

Some dashboard elements, especially gauge cards, were not rendered correctly. The problem appeared as horizontal graphical artifacts / stripes across the dashboard. The same dashboard was displayed correctly in a regular web browser, so it did not look like a YAML or dashboard configuration issue.

This happened only in the Android Companion App.

What fixed it for me:

1. Uninstalled / rolled back the regular Android System WebView.
2. Installed Android System WebView Beta from Google Play.
3. Reopened the Home Assistant Android Companion App.

After switching to Android System WebView Beta, the graphical artifacts disappeared and the gauge cards started rendering correctly again.

So in my case the issue seems to be related to the stable Android System WebView version rather than Home Assistant itself.

Device:
Android version: 12
Home Assistant Android app version: 17.3
Home Assistant Core version: 2026.5.1