I have been using Vegas Pro for almost 7 years now. I recently got Pro 17 and with the first video I edited, everytime I render it, it doesn't go past 50%. I left it running overnight, 8 hours and 37 mins and still was on 50% when I woke up!
So i replaced the footage at the 50% mark and it went past 50% then got stuck at 51%, so i replaced it again, then 60%, so I just scrapped the project. Thankyou for the help though!