If i create a new limiter, the last goes in bad mode

[cybermod]

hi all, i try to tell you my strange problem.

I have one phisical interface (on virtual pfsenes).
Then, i have varius logical interface with vlan.
Ex.
opt1 vlan1
opt2 vlan2
opt3 vlan3
opt4 vlan4 (nat 1:1)
opt5 vlan5

for each opt i have his bandwitch limiter (firewall–> trafic shaper-->limiter)
lmt_in_opt1
lmt_out_opt1
mt_in_opt2
lmt_out_opt2
mt_in_opt3
lmt_out_opt3
mt_in_opt4
lmt_out_opt4

but not for the opt5, and now i have the problem:
then i add the limiter for opt5, it is applied on opt4 and not on opt5.

It made me crasy!
Is very important for me limiter each logical interface.

Can you help me to understand the problem?