Hello,
1/ It is independent of the theme. Check settings of the SEO plugin on your site – https://yoast.com/wordpress-seo/ 2/ Do you mean Shop menu item? Appearance > Menus > Screen options > enable Product categories. Read more – https://xstore.helpscoutdocs.com/category/15-menu-set-up 3/ Provide URL of product with the problem. Here is an example of a product with video – https://xstore.8theme.com/product/product-classic/ https://gyazo.com/f37305797a2f1de3e3fbcf7c0b42f3c6
Regards
