Summary:
This Technical Note describes an issue after upgrading Oracle Essbase Client and Server to version 11.1.2.4. After completion of the upgrade, an error is received in MDX Cube Catalog when trying to move over a cube to be accessible for the project. This is known issue in Strategy 9.x and 10.x.
Symptom:
After completing the upgrade in Oracle, try to add an ASO (Aggregated Storage Option) cube or BSO (Block Storage Option) cube to a project through MDX Cube Catalog in Strategy Developer. An error is returned as demonstrated in the screenshot below.

Error: XMLA Discover failed. SOAP Error. Error type: XMLA error. XMLA[SOAP Fault]:<faultcode>soap:Client</faultcode><faultactor>http://localhost/StrategyMDX/StrategyMDX.asmx</faultactor><faultstring>System.Web.Services.Protocols.SoapException:Fault occurred at Service.Discover(StringRequestType, XmlElement Restrictions, XmlElement Properties)</faultstring><detail><MSTRXmlaErrorCode xmlns=urn:schemas-microsoft-com:xml-analysis Code= "00000000"></MSTRxmlaErrorCode>.....Logging in user [admin@NativeDirectory]1-(Server message -1) (Server message -1)"></MSTRXmlaErrorString><InternalErrorCode xmlns=urn:schemas-microsoft-com:xml-analysis Code="0"></InternalErrorCode><InternalErrorString xmlns=urn: