Dashboard WAN interface graph problem

[Alex 4]

In the netgate 2100 ver .22.05-RELEASE (arm64) in the Status Dashboard WAN interface problem.

i have 2 Vlan WAN interface in 1 physical WAN interface and in the Dashboard WAN 1 & WAN 2 graphs i see the same traffic the same time . I think the wan graph see the physical port and not the Vlan WAN Interface traffic .Did anywan now something about this ?????