Update: the problem persists in version 1.9.1. Documents created in 1.8x containing linked or embedded files cause Publisher to crash immediately when the export dialogue window appears. Tested with two different Publisher (1.8.6) documents, one containing a variety of linked and embedded files, the other included a small number of graphic elements created in Designer 1.8.6. In each case the result was a crash when attempting export. However deletion or replacement of all the linked or embedded files allowed export of the documents to proceed normally. Retention of any external items, irrespective of size or source, will cause a crash.