During the system update that occurred on December 12, 2021, there was an update to the system asset types and sub-types to allow for more refinement in the search process.
Digital and Spanish Variant created prior to that update may be missing the Headline and Deck in the Editor widget. You will still see the information in the preview but you will not be able to edit that information in the Editor.
SOLUTION:
To avoid any potential issues with the export to AEM, we recommend that you create a new Digital Variant and Spanish Variant from the Main Text asset.