migrating webi reports, error with detail fields

We have moved the webi reports from BOXI 3.1 SP3 FP3 (12.3.0.601) to BOBI 4.0 sp6 (14.0.6.1036) and in BOXI I could add the detail fields to the report while in BOBI when i try to add it says incompatible objects for the exact same report.

The backend database is SQL Server

Cheers!