Cannot delete relationship type through UI
Clicking more » Delete on the
/civicrm/admin/reltype page pops up box but fails to load the confirmation message. A network error is shown, and if you look in the console the actual response is:
Sorry, due to an error, we are unable to fulfill your request at the moment. You may want to contact your administrator or service provider with more details about what action you were performing when this occurred. Cannot determine api action for CRM_Admin_Form_RelationshipType.CRM_Core_Action "delete" not recognized.
The path is
Confirmed in two sites on v5.8.1 and v5.10.0 (inc. the civihosting demo site) on Drupal 7. This worked in 5.3.1
(It is possible to delete relationship types using the API)