Hi Mandar,
Maybe my explanation was a bit confusing. I was trying to highlight that the issues described in SAP Note 1823174 - BW 7.4 changes and customer-specific programs can also be applicable to outdated / obsolete BI Content coding. It might be SAP released an update as part of a new BI Content version. It could also be possible that SAP issued an SAP Note for such issues.
As a work-around you might want to solve the issues yourself. I suggest in this case to create a copy of the BI Content coding (in the customer namespace Y or Z), apply the solutions offered in SAP Note 1823174 - BW 7.4 changes and customer-specific programs and implement it in the Transformation.
Best regards,
Sander