Why are some of my generated videos missing the website background and showing as failed?

The average website failure rate is around 8%, anything around that is very normal.

Also make sure that the LinkedIn profile URLs that you are using are not with the profile ID as the link, here's an example:

The LinkedIn URL should not look like this:

"https://www.linkedin.com/in/ACoAADXfUqoBpweCyJbrbiwqy_dNv7MmscgsBww"

Make sure that it looks something like this:

"https://www.linkedin.com/in/elliot-nestenborg/"

This helps ensure the background loads correctly.