Using Vegas Pro 12, rendered Main Concept AVC. Imported the .avc file along with .ac3 file to DVDA. Selected Make Blu-ray project, NOT burn a Blu-ray disc. I only want the file so I can upload to Vimeo later. Some time into the project, DVDA stopped at spit out this message:

An error occurred while preparing compilation.
File name : 00001.m2ts
Status: Vegmuxtw.dll::CTSWrapper::ProcThreadMain::This program has a bug. -m_ptsOfNextGOP is empty.


What does that all mean?
Thanks!!