Multi RS does not accept Switch position Passthrough (251) BUG?

[
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        "type": "victron-output-custom",
        "z": "4befe69e52960696",
        "service": "com.victronenergy.acsystem/0",
        "path": "/Mode",
        "serviceObj": {
            "service": "com.victronenergy.acsystem/0",
            "name": "RS Scheifelaar (0)"
        },
        "pathObj": {
            "path": "/Mode",
            "name": "/Mode",
            "type": "number",
            "value": 3
        },
        "name": "",
        "onlyChanges": false,
        "x": 540,
        "y": 220,
        "wires": []
    },
    {
        "id": "62dc84da463d3b11",
        "type": "victron-input-custom",
        "z": "4befe69e52960696",
        "service": "com.victronenergy.acsystem/0",
        "path": "/Mode",
        "serviceObj": {
            "service": "com.victronenergy.acsystem/0",
            "name": "RS Scheifelaar (0)"
        },
        "pathObj": {
            "path": "/Mode",
            "name": "/Mode",
            "type": "number",
            "value": 3
        },
        "name": "",
        "onlyChanges": false,
        "x": 820,
        "y": 220,
        "wires": [
            []
        ]
    },
    {
        "id": "d6ab10b189dcff88",
        "type": "inject",
        "z": "4befe69e52960696",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "00 16 * * *",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "3",
        "payloadType": "num",
        "x": 320,
        "y": 180,
        "wires": [
            [
                "0484958b4f0abf20"
            ]
        ]
    },
    {
        "id": "86bdc92a0789b6fd",
        "type": "inject",
        "z": "4befe69e52960696",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "251",
        "payloadType": "num",
        "x": 320,
        "y": 220,
        "wires": [
            [
                "0484958b4f0abf20"
            ]
        ]
    },
    {
        "id": "11f81475821ec19f",
        "type": "comment",
        "z": "4befe69e52960696",
        "name": "Passthrough",
        "info": "",
        "x": 160,
        "y": 220,
        "wires": []
    },
    {
        "id": "bacdddfe05bcbcfc",
        "type": "comment",
        "z": "4befe69e52960696",
        "name": "Mode On",
        "info": "",
        "x": 150,
        "y": 180,
        "wires": []
    },
    {
        "id": "ee3e148e2c4b6f24",
        "type": "global-config",
        "env": [],
        "modules": {
            "@victronenergy/node-red-contrib-victron": "1.6.55"
        }
    }
]