I ended up deleting the drawing and doing it over. Alibre tech support told me that it was probably a dimension that was located far off of the view, but I couldn't find anything.
I've noticed a few other buggy things with the drawings. They only seem to occur when a copy of the drawing is saved to my thumb drive to take between computers and then reopened.
1. I am always prompted to updated the drawing even though nothing has changed.
2. Upon performing the update some vertical dimensions will switch to horizontal dimensions, some dimensions will be in red (even though nothing changed), and sometimes the drawings lose their edges.
3. Certain projections will have wierd loops on them that are part of the drawing. (I end up changing the layer of these loops and turning off that layer to hide them)
4. Hatching of cross-sections isn't always contained within the boundaries of the part. The hatch marks extend past the part edge by about a 1/16th of an inch.
5. edges are not always dimensionable even though they are perpendicular to the view. (I understand that Alibre won't allow you to dimension an edge unless it is perpendicular, but these ones were so there shouldn't have been an issue.)
All in all I've spent about 50 hours on a part and drawing that should have only taken 10-12 hours because of the speed issues with Alibre regenerating, saving, opening, and drawing detailing errors/issues. I'll admit that this is a complex molded part with a lot of fillets, but it shouldn't cause so many issues. I exported the part as a dumb .stp file and then imported it back into Alibre, Pro/e, and Catia. Pro/e and Catia opened it in about 30 seconds. Alibre takes several minutes. The money I earned on this drawing went from $50/hr to $10/hr. I use Alibre at home for side work, but I have access to all of the Big Boy programs at work. The only reason that I am sticking with Alibre right now is that I don't have enough side jobs to justify the $4000 for Pro/e when my Alibre maintenance is $295.
