Yes it really changed the VLAN of my VM in the vCenter. I’ve tried it on two different vSphere with two differents installation of Foreman, same problem : VLAN are changed (???) but nothing happen to the disk, even when i tried just extending the already existing disk as shown here (How to resize vmware-volume when creating host via api?) which seems to be an easier things to do, but do not work for me. I forgot to mention earlier, both Foreman are running the 1.16.2 version