Why doesn’t the Video SEO plugin index all my videos?

The cause

Especially on websites with a large number of videos, the plugin can have problems finding all the videos due to a shortage of memory. There can be other reasons why a video may not be indexed. Please check this guide to see how to troubleshoot errors related to video page indexing.

The solution

You should try going to SEO-Video and then re-indexing a number of times. You may need to scroll down to find this feature. However, leave the Force Re-Index box unchecked. Once the number in the sitemap is static, it has found all the videos.