SgNBAdditionRequest [Malformed Packet] V2.6.4

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Using Wireshark 2.6.4, the X2AP SgNBAdditionRequest and subsequent SgNBAdditionRequestAcknowledge show Malformed packet and looks like Wireshark not able to dissect 5G NR messages yet...

When can wireshark support 5G NR X2AP messages (NSA3.x)? is there a workaround for this

EUTRAN X2 Application Protocol (X2AP)
    X2AP-PDU: initiatingMessage (0)
        initiatingMessage
            procedureCode: id-sgNBAdditionPreparation (27)
            criticality: reject (0)
            value
                SgNBAdditionRequest
                    protocolIEs: 7 items
                        Item 0: id-MeNB-UE-X2AP-ID
                            ProtocolIE-Field
                                id: id-MeNB-UE-X2AP-ID (111)
                                criticality: reject (0)
                                value
                                    UE-X2AP-ID: 58
                        Item 5: id-MeNBtoSgNBContainer
                            ProtocolIE-Field
                                id: id-MeNBtoSgNBContainer (206)
                                criticality: reject (0)
                                value
                                    MeNBtoSgNBContainer: 18807a4073a000400054e000140000a00001300001340001...
                                        SCG-ConfigInfo
                                            criticalExtensions: c1 (0)
                                                c1: scg-ConfigInfo-r15 (0)
                                                    scg-ConfigInfo-r15
                                                        eutra-CapabilityInfo: a4073a00040005
[Malformed Packet: X2AP]
    [Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
        [Malformed Packet (Exception occurred)]
        [Severity level: Error]
        [Group: Malformed]


EUTRAN X2 Application Protocol (X2AP)
    X2AP-PDU: successfulOutcome (1)
        successfulOutcome
            procedureCode: id-sgNBAdditionPreparation (27)
            criticality: reject (0)
            value
                SgNBAdditionRequestAcknowledge
                    protocolIEs: 4 items
                        Item 0: id-MeNB-UE-X2AP-ID
                            ProtocolIE-Field
                                id: id-MeNB-UE-X2AP-ID (111)
                                criticality: reject (0)
                                value
                                    UE-X2AP-ID: 58
                        Item 1: id-SgNB-UE-X2AP-ID
                            ProtocolIE-Field
                                id: id-SgNB-UE-X2AP-ID (207)
                                criticality: reject (0)
                                value
                                    SgNB-UE-X2AP-ID: 8222
                        Item 2: id-E-RABs-Admitted-ToBeAdded-SgNBAddResList
                            ProtocolIE-Field
                                id: id-E-RABs-Admitted-ToBeAdded-SgNBAddResList (210)
                                criticality: ignore (1)
                                value
                                    E-RABs-Admitted-ToBeAdded-SgNBAddResList: 1 item
                                        Item 0: id-E-RABs-Admitted-ToBeAdded-SgNBAddRes-Item
                                            ProtocolIE-Single-Container
                                                id: id-E-RABs-Admitted-ToBeAdded-SgNBAddRes-Item (213)
                                                criticality: ignore (1)
                                                value
                                                    E-RABs-Admitted-ToBeAdded-SgNBAddRes-Item
                                                        e-RAB-ID: 5
                                                        en-DC-ResourceConfiguration
                                                            pDCPatSgNB: present (0)
                                                            mCGresources: present (0)
                                                            sCGresources: present (0)
                                                        resource-configuration: sgNBPDCPpresent (0)
                                                            sgNBPDCPpresent
                                                                s1-DL-GTPtunnelEndpoint
                                                                    transportLayerAddress: 
                                                                    gTP-TEID: 01110000
                                                                sgNB-UL-GTP-TEIDatPDCP
                                                                    transportLayerAddress: 00 [bit length 1, 7 LSB pad bits, 0... .... decimal value 0]
                                                                    gTP-TEID: 0597d956
                                                                rlc-Mode: rlc-um (1)
                                                                dL-Forwarding-GTPtunnelEndpoint
                                                                    transportLayerAddress: e026 [bit length 15, 1 LSB pad bits, 1110 0000  0010 011. decimal value 28691]
                                                                    gTP-TEID: 00080d01
                                                                    something unknown here [too many extensions]
                                                                        [Expert Info (Warning/Undecoded): something unknown here [too many extensions]]
                                                                            [something unknown here [too many extensions]]
                                                                            [Severity level: Warning]
                                                                            [Group: Undecoded]
[Malformed Packet: X2AP]
    [Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
        [Malformed Packet (Exception occurred)]
        [Severity level: Error]
        [Group: Malformed]