Why won't this floor pattern print?

[bowlingbrad]

Two images... One is an image dump of the floor patter in the Revit window. The other is the screen capture of print preview showing the missing lower right floor pattern. Any help?

[cosmickingpin]

Does it show when you print a PDF? How is the pattern created? I assume you have a finish floor modeled, is there a view region involved? Try deleting the floor and recreate it. Try printing it out at a larger scale if it does show in PDF. Otherwise post a portion of the file (the affected area only) and see if we can recreate it.