Hello,
Here is a video about Multiple headers – https://youtu.be/BpeXfzNwkOc
Do you use 8.0.2 version of the theme?
Do you use CDN? Try to clear the cache of it.
Please provide temporary wp-admin access, so we can take a closer look.
Regards
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.