We migrated a very large PB application to 2017 R3 Build 1858 from PB 12.5. The migration went surprising well except for one small but critical part of the application. We use a Richtext Datawindow that simply does an INSERTDOCUMENT() of a MS WORD RTF template with several merged fields and then a retrieve. The templates merged fields are populated with the appropriate data. A Richtext Edit Control is not used as part of this solution. In PB 2017 the document inserts (can see it displayed) and a row of data is retrieved but the data is not merged into the documents merged fields. We re-created the datawindow in PB 2017 to eliminate any datawindow migration issues but still no luck. This is a show stopper for our application moving to PB 2017.