Dell S4148 with VLT, LACP and VLANs

Hi, i am trying to setup a pair ofnew S4148 switches for my servers to utilise.

One of the (many) problems i am having revolves around utilising VLT with VLAN.

I have attached my current setup below. Using this setup i have 2 servers configured with an LACP team. with 1 port in each of the 2 switches. It works great, i disable an NIC the other one is working within 1-2 seconds.

However, i want to segregate this traffic onto a VLAN. I can also get this to work, however i cant get it to work in conjunction with LACP and when creating a team the ports dont failover properly. To enable the VLAN configuration i used the same as below, however i also added this to both of the port channels on both switches.

switchport mode trunk

no switchport access vlan

switchport trunk allowed vlan 200

The ports show as online on the servers until I manually add a VLAN of 200 to them, then it shows "Faulted LACP negotiation" If i turn off active mode then the ports work as intended.

Is there something that i am missing? Sorry if this is such a basic question, i have been reading the dell manual but its 100's of pages and i learn better by seeing how things dont work then do work!

Thanks in advance for any help.

config t spanning-tree mode rstp interface ethernet 1/1/26 no switchport exit interface ethernet 1/1/30 no switchport exit vlt-domain 254 discovery-interface ethernet1/1/26 discovery-interface ethernet1/1/30 vlt-mac 00:00:00:00:00:02 backup destination 192.168.90.220 peer-routing interface vlan 200 ip address 10.200.10.12/24 interface vlan 40 ip address 10.40.12.12/24 interface port-channel 1 vlt-port-channel 1 exit interface port-channel 2 vlt-port-channel 2 exit interface ethernet 1/1/1 channel-group 1 mode active lacp rate fast interface ethernet 1/1/9 channel-group 2 mode active lacp rate fast