I am having a very similar issue, where i cant render or “preview in player” past 15% for what ever reason as soon as it gets to a part of the video where i have text music track and hd video at the same time it fails and gives me the same low memory report at steph
i have 4g’s of ram and have never had any kind of memory problem
when i look in task manager i can see that vegas is using wwaayyy more memory then anything else
any help?