After a cold migration from VMware to OCP via MTV Operator the serial is being cut in CNV - I compared the:
1. UUID from VMware VM
2. UUID from vm.yaml - MTV
3. UUID from CNV VM

I can see that VMware and the yaml is the same while the CNV UUID is different 

CNV: 4.18.6
OCP: 4.18
MTV: 2.9.0 - forklift-fbc-prod-v418:on-pr-5627fd617d8a0784433552ab51fc7811cf98ab09

1. Create a VM in VMware - inside the VM terminal > "lsblk -d -o name,serial"
2. Create a provider in MTV to that VMware 
3. Create a plan and run cold migration
4. Check the vm yaml > c get vm [name-of-the-vm] -o yaml > vm.yaml
5. After migration succeeded - inside the VM terminal in OCP > "lsblk -d -o name,serial" 

6000C297-06e0-192a-2
6000C292-c4b3-0c53-d

6000C297-06e0-192a-2cac-afb7f7c36a25
6000C292-c4b3-0c53-d1eb-3d2df75c473c