mc-lag problems

[m00n]

dhcp server is on the another vlan with servers is also a vip vlan (i have only vip vlans, only one normal vlan i s vlan to layer 3 connection with router)
I have only vip addresses on 10k

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ip interface "vip-vlan-10" address X.X.X.30 mask 255.255.255.224 vip-address X.X.X.29 vlan 10 ifindex 1

This my server farm on vlan 10 and here is dhcp-server on linux(debian, isc dhcp server)

I have this vlan untagged in 6850 acces ports and tagged in mc-lag

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ip interface "vip-vlan-1910" address X.X.X.X.62 mask 255.255.255.224 vip-address X.X.X.X.33 vlan 1910 ifindex 16

This is one of my users vlan which is untagged on 6400 and tagged on lacp between 6850, and on 6850 tagged on mc-lag

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B3-OS10K[MC-1]-> show ip helper
Ip helper :
  Forward Delay(seconds)         = 0,
  Max number of hops             = 16,
  Relay Agent Information        = Disabled,
  PXE support                    = Disabled,
  Forward option                 = standard mode,
  Bootup Option                  = Disable,
  Forwarding address list (Standard mode):
 X.X.X.27

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B3-OS10K[MC-1]-> show ip helper statistics

Global Statistics :
    Reception From Client :
      Total Count =       1385, Delta =       1385
    Forw Delay Violation :
      Total Count =          0, Delta =          0
    Max Hops Violation :
      Total Count =          0, Delta =          0
    Agent Info Violation :
      Total Count =          0, Delta =          0
    Invalid Gateway IP :
      Total Count =          0, Delta =          0
Server Specific Statistics :
    From any Vlan to Server 193.107.32.27
        Tx Server :
          Total Count =       1385, Delta =       1385
        InvAgentInfoFromServer:
          Total Count =          0, Delta =          0

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