Bridge constantly changing it's MAC adress

My problem is probably related to this other topic of mine I still have not marked as solved… From Core and Proxmox to Scale | How to properly set the network?

[EDIT]
From what I see on my setup, eno2 is not related directly to br10 or br40

  • eno2 > vlan10 > br10
  • eno2 > vlan40 > br40
    [EDIT]

Here are some screenshots to make sure I typed this correctly.