Embedded binary is not signed with the same certificate as the parent app yet they are identical

Question

An app extension is causing a code signing issue. This app is already on the Appstore (with this extension) yet overnight for some reason when I have come back to this ap

Answer 1

I had the same issue. This started on the day when my Certificate got expired after a year. Following steps worked for me:

1. Delete the old expired certificate from Keychain(You will be able to see a red cross on the certificate icon)
2. Restarting your mac