- Issue created by @Foxy-vikvik
@wilsotoa
You don't have to enable translations for the custom block type (In your case "a column").
You only have to enable it in the custom blocks type you want to add in the entity reference field. With that once you add an entity reference block in your custom block, it will appear in the rest of the translations. To get the translation of that block you have to go to /admin/content/block, and there in your block, generate the translation in the language you want to appear already translated in your custom block.