Hello,
i have a Pixel 4a which just has legacy extended support. I m using a Banking App, which failed working today. It looks like the Play integrity services do not work anymore. When using a play integrity check apps i get in all of them 'INTERNAL Error (-100) Unknown. Unknown internal error'.
What can i do? The Sandbox Play Store was updated about 2 weeks ago. Maybe the problem exists since then, i m not sure.
Greetings Michael