WordPress. Has anyone had a 'media' form field of type 'file' in SiteOrigin Pagebuilder?

Question

Landing pages

Hello, it is often necessary to make your own widget for pages in WP. I use SiteOrigin Pagebuilder for this. So, when I add a field with the media type and with the ability to upload files as indicated in the documentation https://siteorigin.com/docs/widgets-bundle/form-bu... and then in the admin panel I try to select some file from the already loaded, then it is empty, although they are. Has anyone else experienced this and knows how to fix the search issue? 'library' => 'file',