I don't seem to be able to re-create this.
This test flow starts out with the attrubute as null, reads it, writes a 1 (using msg.payload) reads again, then writes null (typedInput) and then reads it.
All seems to work fine.
Could you set the logging level of the controller node to debug and then recreate the issue and share the log & flow you used with me.
[
{
"id": "1b2c4d08d01bf054",
"type": "inject",
"z": "e3752776c5edd4fd",
"name": "read attribute",
"props": [],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 1590,
"y": 100,
"wires": [
[
"cc1c2144a3d7cb0b"
]
]
},
{
"id": "cc1c2144a3d7cb0b",
"type": "matterreadattr",
"z": "e3752776c5edd4fd",
"name": "",
"controller": "24cb35c0870756c1",
"device": "7455765432451654642-1",
"deviceName": "Bulb 1",
"endpoint": "",
"cluster": "6",
"attr": "startUpOnOff",
"simpleMode": false,
"x": 1800,
"y": 100,
"wires": [
[
"209d96971a47cc5b"
]
]
},
{
"id": "209d96971a47cc5b",
"type": "debug",
"z": "e3752776c5edd4fd",
"name": "debug 26",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 2000,
"y": 100,
"wires": []
},
{
"id": "b649c3fc3173b652",
"type": "inject",
"z": "e3752776c5edd4fd",
"name": "write attribute",
"props": [
{
"p": "payload"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "1",
"payloadType": "num",
"x": 1590,
"y": 160,
"wires": [
[
"69ec870b256ed9d0"
]
]
},
{
"id": "769f46cd3cb2993a",
"type": "debug",
"z": "e3752776c5edd4fd",
"name": "debug 27",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 2000,
"y": 160,
"wires": []
},
{
"id": "69ec870b256ed9d0",
"type": "matterwriteattr",
"z": "e3752776c5edd4fd",
"name": "",
"controller": "24cb35c0870756c1",
"device": "7455765432451654642-1",
"deviceName": "Bulb 1",
"endpoint": "",
"cluster": "6",
"attr": "startUpOnOff",
"simpleMode": false,
"data": "payload",
"dataType": "msg",
"x": 1800,
"y": 160,
"wires": [
[
"769f46cd3cb2993a"
]
]
},
{
"id": "e5b45c27dbb5ec63",
"type": "inject",
"z": "e3752776c5edd4fd",
"name": "read attribute",
"props": [],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 1590,
"y": 220,
"wires": [
[
"404f5eaea1475c02"
]
]
},
{
"id": "404f5eaea1475c02",
"type": "matterreadattr",
"z": "e3752776c5edd4fd",
"name": "",
"controller": "24cb35c0870756c1",
"device": "7455765432451654642-1",
"deviceName": "Bulb 1",
"endpoint": "",
"cluster": "6",
"attr": "startUpOnOff",
"simpleMode": false,
"x": 1800,
"y": 220,
"wires": [
[
"5609f27f9cb065d2"
]
]
},
{
"id": "5609f27f9cb065d2",
"type": "debug",
"z": "e3752776c5edd4fd",
"name": "debug 30",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 2000,
"y": 220,
"wires": []
},
{
"id": "c9095b30e5532bb2",
"type": "inject",
"z": "e3752776c5edd4fd",
"name": "read attribute",
"props": [],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 1590,
"y": 380,
"wires": [
[
"4b42cb4a588c1408"
]
]
},
{
"id": "4b42cb4a588c1408",
"type": "matterreadattr",
"z": "e3752776c5edd4fd",
"name": "",
"controller": "24cb35c0870756c1",
"device": "7455765432451654642-1",
"deviceName": "Bulb 1",
"endpoint": "",
"cluster": "6",
"attr": "startUpOnOff",
"simpleMode": false,
"x": 1800,
"y": 380,
"wires": [
[
"c1a89832c5292898"
]
]
},
{
"id": "c1a89832c5292898",
"type": "debug",
"z": "e3752776c5edd4fd",
"name": "debug 31",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 2000,
"y": 380,
"wires": []
},
{
"id": "1668afe649915d79",
"type": "inject",
"z": "e3752776c5edd4fd",
"name": "write attribute",
"props": [
{
"p": "value",
"v": "1",
"vt": "num"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"x": 1590,
"y": 300,
"wires": [
[
"e7b61090636e204e"
]
]
},
{
"id": "6885dcc0b0067498",
"type": "debug",
"z": "e3752776c5edd4fd",
"name": "debug 32",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 2000,
"y": 300,
"wires": []
},
{
"id": "e7b61090636e204e",
"type": "matterwriteattr",
"z": "e3752776c5edd4fd",
"name": "",
"controller": "24cb35c0870756c1",
"device": "7455765432451654642-1",
"deviceName": "Bulb 1",
"endpoint": "",
"cluster": "6",
"attr": "startUpOnOff",
"simpleMode": false,
"data": "",
"dataType": "null",
"x": 1800,
"y": 300,
"wires": [
[
"6885dcc0b0067498"
]
]
},
{
"id": "24cb35c0870756c1",
"type": "mattercontroller",
"networkInterface": "en0",
"logLevel": "ERROR"
}
]
