In Vegas 14, whenever I've rendered on my new computer w/hardware acceleration enabled, 99% chance it will not complete the render. The frame-counter stops moving, the countdown clock keeps counting down (until 0:00 time remaining), and it never completes. Today after a 1.5 hours render of a 1.5 hour video (appx) I thought I'd try enabling the acceleration (Sony "Internet" .MP4 template)... downconverting to 720p (from 1080p source/project) was really fast.. 1.5 hour video took about 50 minutes to render.. sweet! Until at 99% with literally 8 seconds left of source footage to render, it froze (like described above).

SO... I installed Vegas 15 to see how it'd behave... enabled hardware accelerated rendering, and chose one of the new MAGIX render templates for 720p Internet (lowered the max bitrate a bit). Performance was decent, but sure enough.. froze about 60% in, just like in Vegas 14. Trying it now in V15 with same template and it's performing quite poorly (est. 1:52 render time).

Anyone else experience this hanging behavior during renering with GPU acceleration enabled?