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SmartThings integration setup fails in 2026.10: MissingField: Field "manufacturer_id" of type int is missing in Zwave instance #184789
Description
The problem
âĒ Regression between 2026.9 (working) and 2026.10 (broken).
âĒ In pysmartthings, Zwave.manufacturer_id (and product_type/product_id) needs to be Optional[int] = None.
âĒ SmartThings omits these fields when devices have inclusion anomalies (such as networkSecurityLevel: ZWAVE_S0_FAILED or legacy devices missing manufacturer codes).
What version of Home Assistant Core has the issue?
2026.10
What was the last working version of Home Assistant Core?
2026.9
What type of installation are you running?
Home Assistant Container
Integration causing the issue
Smartthings
Link to integration documentation on our website
No response
Diagnostics information
No response
Example YAML snippet
Anything in the logs that might be useful for us?
2026-10-07 17:09:43.116 ERROR (MainThread) [homeassistant.config_entries] Error setting up entry Home for smartthings
Traceback (most recent call last):
File "<string>", line 142, in __mashumaro_from_dict_json__
File "<string>", line 15, in __mashumaro_from_dict_json__
mashumaro.exceptions.MissingField: Field "manufacturer_id" of type int is missing in Zwave instance
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<string>", line 11, in __mashumaro_from_json__
File "<string>", line 144, in __mashumaro_from_dict_json__
mashumaro.exceptions.InvalidFieldValue: Field "zwave" of type Optional[Zwave] in Device has invalid value {'networkId': '02', 'driverId': 'f2f2679a-24fb-40da-9322-4c85988e9b53', 'executingLocally': True, 'hubId': 'ba093390-3773-4b09-96d5-77c3e0c22e95', 'networkSecurityLevel': 'ZWAVE_S0_FAILED', 'provisioningState': 'PROVISIONED'}
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/config_entries.py", line 985, in __async_setup_with_context
result = await component.async_setup_entry(hass, self)
File "/usr/src/homeassistant/homeassistant/components/smartthings/__init__.py", line 207, in async_setup_entry
devices = await client.get_devices()
File "/usr/local/lib/python3.14/site-packages/pysmartthings/smartthings.py", line 251, in get_devices
resp = DeviceResponse.from_json(
await self._get_devices(...)
)
File "<string>", line 13, in __mashumaro_from_json__
mashumaro.exceptions.InvalidFieldValue: Field "items" of type list[Device] in DeviceResponse has invalid value [...]Additional information
Offending Device Record from payload:
{
"deviceId": "e061edb2-a627-4454-94b6-5415a7fc78af",
"name": "Z-Wave Garage Door Opener",
"label": "Garage Double Door",
"type": "ZWAVE",
"zwave": {
"networkId": "02",
"driverId": "f2f2679a-24fb-40da-9322-4c85988e9b53",
"executingLocally": true,
"hubId": "ba093390-3773-4b09-96d5-77c3e0c22e95",
"networkSecurityLevel": "ZWAVE_S0_FAILED",
"provisioningState": "PROVISIONED"
}
}
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home-assistant commentedon Oct 8, 2026
Hey there @joostlek, mind taking a look at this issue as it has been labeled with an integration (
smartthings) you are listed as a code owner for? Thanks!Code owner commands
Code owners of
smartthingscan trigger bot actions by commenting:@home-assistant closeCloses the issue.@home-assistant rename Awesome new titleRenames the issue.@home-assistant reopenReopen the issue.@home-assistant unassign smartthingsRemoves the current integration label and assignees on the issue, add the integration domain after the command.@home-assistant add-label needs-more-informationAdd a label (needs-more-information, problem in dependency, problem in custom component, problem in config, problem in device, feature-request) to the issue.@home-assistant remove-label needs-more-informationRemove a label (needs-more-information, problem in dependency, problem in custom component, problem in config, problem in device, feature-request) on the issue.(message by CodeOwnersMention)
@indermuehle Thanks for reporting this issue!
Before we dive in, please make sure this isn't a duplicate by searching through existing issues. Also check recently closed issues, as your problem might already be fixed but not yet released.
https://github.com/home-assistant/core/issues?q=%20label%3A%22integration%3A%20smartthings%22%20
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smartthings documentation
smartthings source
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koenkai commentedon Oct 10, 2026
Same issue after I updated to 2026.10.0 (HAOS on an HA Yellow). The device triggering it is an old Aeon Labs Z-Wave siren with a failed S0 security pairing, so SmartThings returns no manufacturerId/productType/productId for it:
mashumaro.exceptions.MissingField: Field "manufacturer_id" of type int is missing in Zwave instance mashumaro.exceptions.InvalidFieldValue: Field "zwave" of type Optional[Zwave] in Device has invalid value {'networkId': '04', 'executingLocally': True, 'networkSecurityLevel': 'ZWAVE_S0_FAILED', 'provisioningState': 'PROVISIONED'}Restoring my 2026.9.4 backup fixed it for now.
jacquespaquin commentedon Oct 10, 2026
Same issue? I have two locations with Smartthings and the integration worked fine on the one with no zwave devices (work) and failed with my home smartthings integration.
`Traceback (most recent call last):
File "", line 142, in mashumaro_from_dict_json
File "", line 15, in mashumaro_from_dict_json
mashumaro.exceptions.MissingField: Field "manufacturer_id" of type int is missing in Zwave instance
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "", line 11, in mashumaro_from_json
File "", line 144, in mashumaro_from_dict_json
mashumaro.exceptions.InvalidFieldValue: Field "zwave" of type Optional[Zwave] in Device has invalid value {'networkId': '09', 'driverId': 'd58d8432-ea22-4d38-8300-2bd75fdf1358', 'executingLocally': True, 'hubId': '060a5a81-37ab-4114-992f-xxxxxxxxxxxx', 'networkSecurityLevel': 'ZWAVE_LEGACY_NON_SECURE', 'provisioningState': 'PROVISIONED'}