Description of problem: Client has a small cloud of 4 compute nodes over 2 roles (2 for each). They run a stack deploy and heat is trying to rebuild all compute nodes with the same names. From the templates and overcloud plans, the count for each role is 2 so its not scaling out or something like that. The rebuild fails because there are no new baremetal node to deploy to. We got a mysqldump from the undercloud. And a new sosreport from after the deployment attempt. We need your help to find why heat is trying to do that here. More info in the next private comment bellow. Version-Release number of selected component (if applicable): OSP 16.1.6 How reproducible: 100% right now Steps to Reproduce: 1. do an openstack deploy 2. 3. Actual results: compute nodes are being rebuilt Expected results: Overcloud deploy should just not touch actual compute nodes. Additional info: we have sosreport and mysqldump of director node.