Building proxies in Vegas Movie Studio was created by AllenMoore
I shoot mostly in UHD/4K and have "automatically build proxies" checked in Preferences. Every so often, I will encounter an error message "failed to build proxy" for certain files. Doesn't happen all the time, just occasionally. Any idea why?
Replied by DoctorZen on topic Building proxies in Vegas Movie Studio
I have no idea what would cause this, without knowing the exact type of video you are using when this happens.
The video proxies that are generated by Vegas, live in the same folder your source videos came from.
If you experience problems, it may be a good idea to delete the proxies and then regenerate them.
Video proxies look like a white sheet of paper and end with the file extension .sfvp0
Remember to turn everything off at least once a week, including your brain, then sit somewhere quiet and just chill out.
Unplugging is the best way to find solutions to your problems.