CRM Analytics Save Error - Value required for [actions]

After the Salesforce Summer 23 release, I've encountered this error when attempting to save a dashboard after making changes - Value required for [actions].

What makes this error odd, is the dashboard modification had nothing to do with actions.

A quick look at the dashboard JSON revealed the following interactions node on a table in the widgets collection.

Going to the table on the dashboard and clicking the Interaction tab revealed the following. If there is a partially configured interaction, you won't be able to save the dashboard.  For example, the Click event was established, but no actions defined.

Simply removing the Interaction by using the x on the right allowed the dashboard to be saved.