Im facing the same issue. The error came after we switched to unity catalog, and I try to replay a stream job. The job both reads and writes. This problem has been open for more than 12 months and only new contributes has commented on it...

The stacktrace is: com.databricks.unity.error.MissingCredentialScopeException: [UNITY_CREDENTIAL_SCOPE_MISSING_SCOPE] Missing Credential Scope. Failed to find Unity Credential Scope..

at com.databricks.unity.error.MissingCredentialScopeException$.withDebugLog(UCSExceptions.scala:62)
at com.databricks.unity.UCSExecutor.$anonfun$currentScope$1(UCSExecutor.scala:82)
at scala.Option.getOrElse(Option.scala:189)
at com.databricks.unity.UCSExecutor.currentScope(UCSExecutor.scala:82)
at com.databricks.unity.UCSExecutor.currentScope$(UCSExecutor.scala:80)
at com.databricks.unity.UCSExecutor$.currentScope(UCSExecutor.scala:106)

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