Ho to configure Granular delegation rules for ITSM

[service buzz]

I have installed the granular delegation which works fine for HR Task but when I create a delegation rule for Incident, change the rule is not working

I created a delegation rule as 

Delegation table -Incident

delegation rule "Assigned to me(dynamic" so all the incidents assigned to him/her will be delegated to a delegate person but this rule doesn't work for incident.

Please let me what needs to be done here to make it work.

Thanks

[Mark Manders]

You will need to (temporarily) add the roles needed to work on the records.

[service buzz]

Both the users in the screen shot provided are part of same group.

I did not get you what roles we are supposed to add?