BIG-IP : iRule event appropriate to log final pool destination

I could see within a specific iRule LB_SELECTED firing following setting a destination pool in HTTP_REQUEST , but then in another lower-priority ( higher numerical value ) iRule , pool is reset to a different destination pool

are you looking at one connection (e.g. same source ip and port)? if yes, can you add oneconnect profile?

 configuration without oneconnect

[root@ve11c:Active:In Sync] config  tmsh list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 8
}
[root@ve11c:Active:In Sync] config  tmsh list ltm rule qux
ltm rule qux {
    when CLIENT_ACCEPTED {
  log local0. "[IP::client_addr]:[TCP::client_port]"
}
when HTTP_REQUEST {
  pool foo
  log local0. "[IP::client_addr]:[TCP::client_port] [HTTP::host][HTTP::uri]"
}
when LB_SELECTED {
  log local0. "[IP::client_addr]:[TCP::client_port]"
}
when SERVER_CONNECTED {
  log local0. "[IP::client_addr]:[TCP::client_port]"
}
}

 /var/log/ltm

[root@ve11c:Active:In Sync] config  tail -f /var/log/ltm
Mar  9 14:07:35 ve11c info tmm1[15262]: Rule /Common/qux : 172.28.24.1:52283
Mar  9 14:07:35 ve11c info tmm1[15262]: Rule /Common/qux : 172.28.24.1:52283 172.28.24.10/
Mar  9 14:07:35 ve11c info tmm1[15262]: Rule /Common/qux : 172.28.24.1:52283
Mar  9 14:07:35 ve11c info tmm1[15262]: Rule /Common/qux : 172.28.24.1:52283
Mar  9 14:07:36 ve11c info tmm1[15262]: Rule /Common/qux : 172.28.24.1:52283 172.28.24.10/
Mar  9 14:07:36 ve11c info tmm1[15262]: Rule /Common/qux : 172.28.24.1:52283 172.28.24.10/
Mar  9 14:07:36 ve11c info tmm1[15262]: Rule /Common/qux : 172.28.24.1:52283 172.28.24.10/

 configuration with oneconnect

[root@ve11c:Active:In Sync] config  tmsh list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    profiles {
        http { }
        oneconnect { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 8
}

 /var/log/ltm

[root@ve11c:Active:In Sync] config  tail -f /var/log/ltm
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284 172.28.24.10/
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284 172.28.24.10/
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284 172.28.24.10/
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284 172.28.24.10/
Mar  9 14:09:33 ve11c info tmm[15262]: Rule /Common/qux : 172.28.24.1:52284