http-profile on VS with non-standart-port

Hi,

no, the HTTP Profile Setting is not greyd out, but if I activate one of the Profiles, the VS doesn't work.

ltm virtual WR3_Futura_40 {
    creation-time 2019-07-04:05:24:39
    destination 172.27.216.113:4840
    ip-protocol tcp
    last-modified-time 2019-07-04:05:24:39
    mask 255.255.255.255
    persist {
        source_addr {
            default yes
        }
    }
    pool nvswr3ap_4840_Futura40
    profiles {
        tcp { }
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    translate-address enabled
    translate-port enabled
    vs-index 81
}