Changing Shelly Plus PlugS LED colour makes the device briefly unavailable in HA

[MacrosorcH]

The problem

Setting the LED colour of a Shelly Plus PlugS device via its web UI, or by using an equivalent REST command like the one below, makes all the entities of the device briefly unavailable in Home Assistant, for less than a second, within a minute or so from the action (with next status poll perhaps?).

The Shelly Plus PlugS is on latest firmware 1.7.1.

While this represents just a minor annoyance, it raises unnecessary alarms in my setup, as it is constantly monitoring availability of key devices (that's how I found it out).

Shelly Web UI where color can be adjusted:

Equivalent REST command:
http://<SHELLY-IP>/rpc/PLUGS_UI.SetConfig?config={"leds":{"mode":"switch","colors":{"switch:0":{"on":{"rgb":[100,0,0],"brightness":10},"off":{"rgb":[0,0,0],"brightness":10}},"power":{"brightness":10}}}}

Shelly entities' status becoming briefly unavailable on Home Assistant (this is just the Firmware entity, but it happens for all of them simultaneously - each of the 4 unavailable entries corresponds to a change color action):

What version of Home Assistant Core has the issue?

core-2025.12.5

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Shelly

Link to integration documentation on our website

https://www.home-assistant.io/integrations/shelly/

Diagnostics information

No response

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response

[home-assistant]

Hey there @bieniu, @thecode, @chemelli74, @bdraco, mind taking a look at this issue as it has been labeled with an integration (shelly) you are listed as a code owner for? Thanks!

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If your issue is related to Shelly generation 1 device, make sure you have configured CoIoT peer correctly.
If your issue is related to battery powered Shelly generation 2/3/4 devices, make sure you have configured Outbound WebSocket correctly.
Please enable Shelly debug logging, let it run for 10-15 minutes, and make sure to capture whatever problem you're having in the debug log. Note: it is better to drag the log file into the comment (which will add it as an attachment) and not copy paste as it is hard to read logs in GitHub.
Finally, be sure to include diagnostics for the Shelly device you're having problems with.
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shelly documentation
shelly source
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[MacrosorcH]

From the debug logs I can see that, after a LED colour change action, the integration is reloading the config entry for the device, hence all the entities becoming briefly unavailable. Perhaps this is completely expected behaviour, but I thought it was worth reporting anyway.
Thanks in advance for any feedback and keep up the fantastic work with the Shelly integration!

[thecode]

When the device reports a config change we reload the device because we don't know what has changed on the device, for example you can change a Shelly 2PM from a relay (switch) to a cover, change input types, channel names.
We reload the device to update Home Assistant to reflect the correct device configuration. In certain cases if we know to detect what has changed we skip the reload.
I will take a look if we can do something about it.