When you create a VLAN interface, the interface name is automatically assigned by Artica. If you want to change its name, use this method. Feature available on Artica v4.50 Service Pack 3 or Artica v4.50 SP2 Hotfix 20250322-14
Select your macvlan interface
Under the parameters click on Change button under the name field
On the rename interface, choose the suffix number you need to fix.