When running a whole db export on the plugin homepage it successfully grabs anything that is in strapi but not any plugin built content-types.

Create a content-type inside of a plugin

Populate some entries

Export whole database

Look through the json export

See there is no content types from the plugin

Export all single and collections types from content-api AND plugin-api

It looks like it's grabbing the image upload plugin's entries but there must be some logic missing to look for content types that exist within other plugins. (Maybe something is hardcoded?)