Simple wordpress plugin for video list

I need to develop simple wordpress plugin that shows many video lists. Already ready to all designs and fetures. The issue: This template has a custom post-type called "videos". When adding "categories" to a project in the admin, they are added as "videos-category" in the DB. But then, WPBakery (visual composer) doesn't find them in the auto-complete field of the Post-Grid. I need to be able to present the Post Grid with projects according to their category (ex: "kitchens" on the kitchens page, "bathrooms" on the bathrooms page, etc) and this is not possible right now since the posts are not being filtered by category... I've been banging my head on this item for 2 days now so I'm wiling to pay a more experienced wordpress dev to get this fixed.