TBS 6.0 Win7/64 PDF Export Causes Crash

We’ve have an issue with TBS crashing when doing a PDF export. Some of the drawings in the same project export fine, but most cause TBS to crash. It seems to be somewhat size related, the more complicated the draw is, the more likely it is to crash.

We’ve been exporting to PNG, but need higher than the max 2000x2000 res images for a comic book that we are creating from the animation.

There are no imported bitmaps in the drawing.