If you have updated a template XML file outside of Maya you need to reload it in order to synchronize the asset with your changes.

For example, if you have reorganized the attributes within a custom view using an external XML editor, you need to reload the template in order for your changes to be displayed.

To reload a template

1. In the left panel of the Asset Editor, select an asset that uses the template you have updated and click the Pin Asset icon .
2. From the Asset Editor menu bar, select Template > Reload.

   Maya reloads the template and updates the display of attributes in the various windows and editors.