uuid of the media record in statePath of the form (example: data.form_answers.bank_statements) where form_answers is the statePath and bank_statement is the field key/name.collection and does not respect (not even save to) statePath. documents and 2 SpatieMediaLibraryFileUpload components with keys bank_statements, application_form, after saving the form both of the components shows the combined medias. loadStateFromRelationshipsUsing to retrieve the medias from the uuid array in data.form_answers.<field_key> and also save the media uuid back to statePath.->dehydrated() which does not save the uuids.