Referenced Scenes Validation

>>> [ERROR] Checking if there is referenced data - FAIL.
> Make sure that all referenced data is imported and namespaces removed.
> Automatic fix available. Click on the gear icon to start.
Referenced scenes are not supported by the validation and export add-on.
All referenced scenes need to be either imported or removed before continuing with the validation.
An automatic fix is available! By clicking on the
icon the add-on will import all referenced scenes it finds.