User has Raster Offline Driver Pack installed with the Monochrome Raster Driver configured for Tiff Group 4. If a design file contains a . (period) in the name, the output name gets truncated (e.g. "DDF1.102_G-002XXX.dgn" becomes "DDF1.tif"). DOCROOT is being used for the naming pattern.
2. Use DOCNAME instead of DOCROOT for the Pattern File name.
Note: Per Raster Offline Driver Help:DOCNAME: Name of the document as it appears in a printerDOCROOT: Document name prefix