Training Lab Playbook not triggered

Hello !

I am trying to run the playbook Get-GeoFromIPAndTagIncident as per the Modules of the Training Lab provided by Azure Sentinel. I am running this on an incident in the training lab "Sign-ins from IPs that attempt sign-ins to disabled accounts". However, it does not trigger the playbook. I have included the screenshot. I am new to Sentinel and would really be glad if somebody could help.

Thanks in anticipation!