Duplicate Minion ID

I have installed two VMs using a template in VMware. The first VM was already registered to the SUMA. Now I added the second VM and now the second VM has replaced the first VM using the new name ;-(
Although they have different hostnames and the template hasn’t any contact with the SUMA before and MAC is also different
In the “System History” a “Duplicate Minion ID” is displayed but the salt keys are different ones. So what could be duplicate?

Check this: