I have the same problem. Couldn't solve by any solution. Did you solve the issue?

I had the similar issue. I have figured out that my app identifier has 2 iCloud containers attached with. I removed the iCloud container which was not in use. Steps to edit iCloud container. Go to your developer account Certificates, IDs & Profiles Identifiers Select your app's identifier iCloud > Edit Container Choose the correct iCloud container This did solve my problem. Hope it works for you too.

At last my problem got resolved. I have figured out that my app identifier has 2 iCloud containers attached with. I removed the iCloud container which was not in use. Steps to edit iCloud container. Go to your developer account Certificates, IDs & Profiles Identifiers Select your app's identifier iCloud > Edit Container Choose the correct iCloud container This did solve my problem. Hope it works for you too.

The problem was from apple side. They believe that the problem is now solved. Thank Apple team. My problem gets resolved. I don't see these type of errors now.