If you try to scan the QR code while adding a new Android device and nothing happens, check if Chrome cookies are enabled.
Open Chrome and navigate to the Settings menu.
Tap Site settings.
You can see the Cookies option with its current state. By default, it is Allowed. But if it is in a Blocked state, continue with the steps.
Tap the Cookies option and enable the toggle button.
You can see its state changed to Allowed in the Site Settings screen.
Now go back to your browser, close it and open it again.
Congrats! You are now able to use Vereign.