See these SAP Notes https://launchpad.support.sap.com/#/notes/2323556/E
https://launchpad.support.sap.com/#/notes/2000441/E
First one is as of June this year
Also https://launchpad.support.sap.com/#/notes/2169593
If they do not help, perhaps you can share the version and SP for your BI4.x