Home Assistant cannot turn on light with brightness attribute (since v2.6.0) #28498
Description
What happened?
Hi,
since Zigbee2MQTT v2.6.0 (also applicable with 2.6.1) there is an issue with turning on lights with additional brighness attributes.
Eg, this action works in HA with Z2M v2.5.1:
action: light.turn_on
data:
rgb_color:
- 0
- 0
- 255
brightness: 60
target:
entity_id: light.licht_stern
The above code turns on the light and sets color + brightness. Since 2.6.0 when the brightness attribute is added then the light does nothing (like ignoring the command).
I also tried other attributes: "brightness_pct", "brightness_step_pct" and "brightness_step".
Removing brightness attributes will turn on the light with defined attributes (except brightness of course).
My light info:
Manufacturer: _TZ3210_bfwvfyx1
Model: TS0505B
What did you expect to happen?
The light turns on with given attributes.
How to reproduce it (minimal and precise)
No response
Zigbee2MQTT version
2.6.0
Adapter firmware version
8.0.2 [GA]
Adapter
Sonoff Zigbee 3.0 USB Dongle Plus (ZBDongle-E)
Setup
HA addon on Proxmox
Device database.db entry
No response
Debug log
The light is called is called "Licht Stern".
Log when turning on light in v2.6.1 (using HA action):
v2.6.1 45df7312_zigbee2mqtt_2025-09-05T06-04-53.406Z.log
Log when turning on light in v2.5.1 (using HA action):
v2.5.1 45df7312_zigbee2mqtt_2025-09-05T06-10-48.450Z.log