Required agencyId declared under AdditionalAgencyLogEvent conflict/obstruct the also required agencyId from the base LogEvent component. In the state the schema is in, AdditionalAgencyLogEvent is not useable.
agencyId declared under AdditionalAgencyLogEvent should be renamed so it does not conflict with LogEvent and to make clear if is identifying the AdditionalAgency this log event is about. e.g. additionalAgencyId
Note that i3 document will need to be updated to reflect the change in the schema.