[BUG] Amplify Console - Previews not working

After upgrading to the new Amplify GitHub app, build previews stopped working. Using Github private repo in an organization. PR branches do not appear in AWS Amplify Console.

It seems that a lot of people are having the same issue: https://github.com/aws-amplify/amplify-hosting/issues/2297

In my case, it happens with apps that have backend as well as frontend.

App ARNS:

• arn:aws:amplify:eu-west-1:862946620411:apps/d1wf44uh7yqipj
• arn:aws:amplify:eu-west-1:862946620411:apps/d2q5pw1xnsetwi

I have tired reconnecting repository and updating/reinstalling the GitHub Amplify app, nothing helps. I've verified that GitHub app has all the necessary permissions.