Umbracco V13 / Articulate 5 - Invaild propery values in example contents media pickers on initial package installation

[gavinfaux]

On first install media pickers in example content do not function correcty, the pickers act as if they do not have values displaying validation message; editing the picker value to reselect media or deleting and adding again does not resolve the issue.

This issue does not effect new content added to the site.

Save and publish will show a "This property is invalid" error for the picker, while Save will show the same message as a warning, but the content does save and on refresh the issue is resolved for the edited content.

To resolve the issue for the for all content, hit save on the Articulate Media Picker data type, media in example content will now resolve and behave correctly.

See the Umbraco issue Media from package doesn't get saved correctly for further context.

Problem does not appear to effect Umbraco 15+.

EDIT: There's no harm in re-saving all of the Articulate Data Types, this ensures they are using the correct schema (e..g text instead of varchar) and configurations.