Hi @pablo740,
The editor switch option only shows when Settings → Writing → Allow users to switch editors is set to Yes, so check that first.
If it’s already on, the missing option usually comes from one of these:
- Custom post types: a post type that isn’t registered with show_in_rest => true can’t use the block editor, so there’s nothing to switch to.
- The “Posts page”: the page set as your blog page under Settings → Reading always opens in the Classic editor.
- Another plugin: a page builder or custom post type plugin may be forcing one editor on those posts. Try deactivating other plugins one at a time to find it.
Could you let us know which post types it happens on? That will help narrow it down.
Hope this helps!