1287581 - Lost Schema In within a query transform after map_operation results in validation error

The schema in on a query transform after a map_op (after a history_preservation transform) is lost -- if you validate the preceding objects the mapping appears and the schema in is populated. The schema out is showing the description and properties.

Error on validation:

====ERROR STRING====                                                                                                                
Invalid mapping expression for column <Column name>.                                                                  
Additional information: <Cannot parse expression.                                                                                   
Column <Column name> was not found in table <Object name>. Please check                                                             
the spelling of the referenced column and ensure such a column exists inthe table.. (BODI-1112351)>. (BODI-1111081)                 
====END ERROR STRING====                                                                                                            

• Data Services 12.1.0.0
• Data Services 12.1.0.1

KBA , EIM , Enterprise information management solutions , Problem