Organization Copy and Item Descriptive Flex-field values

I have a strange issue with Min-Max planning that may be related to using Copy Organization to create the inventory organization where min-max is running.

Min-max refused to run cleanly, erroring out with the following:

MSG-00069: Calling INV_MMX_WRAPPER_PVT.exec_min_max from Before Report Trigger

MSG-00070: INV_MMX_WRAPPER_PVT.exec_min_max returned an error:

REP-1825: Before Report trigger returned FALSE.

REP-0069: Internal error

REP-57054: In-process job terminated:Terminated with error:

REP-1825: MSG-00069: Calling INV_MMX_WRAPPER_PVT.exec_min_max from Before Report Trigger

MSG-00070: INV_MMX_WRAPPER_PVT.exec_min_max returned an error: