How do I configure a new UUID after clone a Mac VM instance?

I am using VMware Fusion,  and I have a parent macOS VM instance.   after I 'clone' (not copy and paste) the VM,  I still get the same UUID for the new VM. 

What confused me is that:  I check the vmx file in the new vm,  it is actually a different uuid already.  Any ideas how I can fix this problem?

I've tried this https://kb.vmware.com/s/article/1541 but it doesn't work for me,  I still get same UUID.