Reading here, tried what other people said, DISABLE GPU ACC, and… it worked for a better render time, don’t think that a solution but, it worked, didn’t freeze during render and finishes quickly, still the problem that the rendered MPEG2 if I play from computer skips in some points, that never happened with a MPEG2 rendered from vegas 9, is VERY strange, did several test and ALL the MPEG2 rendered from vegas 12 have those skip (audio and video freezes for a momment and then continues), Vegas 9 or premiere MPEG2 renders plays PERFECT.