Open URL in browser failing "Error SecurityUtil Bundle is missing handshake binder"

Hello,

I am trying to open the Oculus Quest 2 browser from my Unity application, to display a web page.

This was working reliably, but suddenly stopped with no app changes. We believe it could be due to a software update on the Quest.

We do:

Application.OpenURL("<url>");

And that used to take the user to the browser page and leave the app. This was exactly the flow we needed. Now, the app flashes black for half a second, and quickly comes back in focus. And when the user eventually quits the app manually later, then only does the browser open.

From Android Logcat, we are getting:

Error SecurityUtil Failed to verify identity of calling application for app launch flow. Bundle is missing handshake binder!

 Now, it sounds like there's a solution! Bundle is missing handshake binder, that sounds promising. But I can't find what a handshake binder is or how to add one.

Anyone would have any hint?
Thank you