Proxmox 7.1-7 Strange MAC being reported by ARP table

[Ultrush]

Here I have used the terminal to asses the network configuration of a COMPLETELY vanilla install of PVE 7.1-7
Then pinged the vmbr3 interface from a client running on the same network as the server (192.168.50.60).
After examining the ARP cache of the client machine it appears that there is a different MAC associated with the IP (192.168.50.36)
HPDL360p GEN8 with 4 port HP 331FLR NIC
What could cause this?

 

[Ultrush]

After unplugging the cables to determine what is going on there's a completely different assignment of MAC to the other interfaces!!
I'm so confusion. Why would unplugging the the cable change the MAC address of 192.168.50.39??
Am I missing something here?

 

[Ultrush]

Holy smokes...What's going on here!!

 

[spirit]

2c:76:8a is an hp nic
3c:58:c2 is an intel nic

so you must have same ip configured twice on another server