Yep, I’m having the same issue! I have tried to contact the developer with no response yet. Are you using latest WordPress 3.4.2 as well? Is your other wordpress blog the same version?
yes, I am using wordpress 3.4.2. and the other wordpress blog too. All my plugin is the latest version.
I just clear the issue, I deactived video seo yoast’s plugin. I am go to mysql database, expecially in wp_options. And search the plugin (wordpress seo-video), all of data from the plugin I delete. And the I am go to my dashboard wordpress, activated the plugin again.and put the license key.
And the plugin is working now, I don’t know this method is the best. But you can try it. 🙂
Hmmm, so I did as you suggested and deactivated the plugin, then went into database and removed 2 related options I found in wp_options table (wpseo_video_xml_update, wpseo_video). Then, I reactivated the plugin, inserted my license key and tried a test by inserting a youtube video link in a post and hit update button. Nothing changed. I still do not see the “Video” tab in the SEO options.
After you deactivated the plugin, did you remove any other rows than the 2 I mentioned?