Same here.
If you download the xcodebuild-export-archive logs, you will probably see something like
"Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (502) for URL http://172.16.143.200:8089/....
...
error: exportArchive No signing certificate "iOS Distribution" found
We had the same issue a couple of months ago, and it just went away the next day.
Topic:
Developer Tools & Services
SubTopic:
Xcode Cloud
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