If you have to move a VM from one cluster to another cluster (not VMotion, but power off and copy over files), make sure you snapshot before powering on and then tick “I moved it” when asked if you moved or copied it). If it all works, remove the snapshot as quickly as possible. The main issue is that if the VM boots and the UUID changes, the licenses immediately break. This is why you take the snapshot.

A better way is to deploy new VM's and then move the licenses over in the support portal.