Good catch Robert! You are correct that I looked right past the missing triangles in the upper half. I will claim early morning as the reason, too.
Side note: Is there a missing response in the thread from you? Matt's response is a bit cryptic without the context.
@David: I agree this is beyond the scope of forum help. If you haven't already and have your print widget set up to do so, you could check to see if the map exports to jpg, png, etc. correctly or not. It may help isolate the source of the issue.