I am seeing book.SetProps() and doc.SetProps() crash both FrameMaker 11 and 12.

I am attempting to set the PDFDocInfo at the book and doc level.

I can get the active book, get its props, and read and write to the PDFDocInfo. When I add book.SetProps( props ); to the code it crashes FrameMaker 11 or 12.

I tried doing only:

var book = app.ActiveBook;

var props = book.GetProps ( );

book.SetProps ( props );

Simplest possible case, and the same with doc, it still crashes.

Has anybody else seen this?

Regards,

Stuart