Periodically, Apple updates its development and distribution certificates. They are updated when XCode updates. If you haven’t updated to the latest version you may have to update these files yourself.

1. Download the certificate APPLEWWDCRCA3.cer
2. Install it into KeyChain Access

https://developer.apple.com/support/certificates/
https://stackoverflow.com/questions/64596362/iphone-distribution-certificate-is-not-trusted

February 7, 2021  
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