When deleting a registrant from a Friends asking friends event as a non system admin, the page hangs and the user is not able to perform the delete operation.
There is an explicit Delete Registrant permission that must be assigned to non-admin users in order to complete this task.
To update this value: 1. Determine correct System Role to update for the relevent user 2. Expand Feature navigation to: Friends Asking Friends > Registrant 3. Under Record Operations, grant permission to "Delete registrant Registration" 4. Click "Save"