Hi, We recently upgraded to 4.3.8 from 4.1.9. In the update process we set Cluster and DataCenter compatibility versions to 4.3, but now we're facing a problem with VmPools. They cannot be edited and 4.1 as compatibility level is still forcibly set. That means that when new machines are added to the pool, compatibility version 4.1 is set on them and they cannot be started as a message stating the following pops up: Failed to run VM XXX-34 due to a failed validation: [Cannot run VM. The Custom Compatibility Version of VM XXX-34 (4.1) is not supported in Data Center compatibility version 4.3.] (User: admin@internal). Is there a workaround to start those machines, or a way to fix the problem? Thanks.