Is "Websocket Last Update" no longer available when "Enable polling for changes" disabled in System Options?

[henry77github]

Is "Websocket Last Update" no longer available when "Enable polling for changes" disabled in System Options? In version 2.20.0, I noticed that "Websocket Last Update" seems to be "Unavailable". I personally use this to determine if my connection to the Carrier Cloud is good or not in my climate control automation. Instead of enabling the "Enable polling for changes" in System Options, in my automation, I just call Update entity every 5 minutes. This is done to reduce the number of Api call to the Carrier Cloud.

Please let me know if there was a code change in this version. Thanks!

[henry77github]

Well, I was going to reproduce this issue and "Reload Failed" issue I were seeing in the last few revision, however both issues are no longer happening. I don't know if it has anything to do with enabling polling for changes. Everything seems to be working fine now. I can reload the integration fine with polling disabled. Websocket Last Updated is being updated periodically as well.

The only thing I am seeing now is this error in my HA logs:

Log details (ERROR)
Logger: carrier_api.api_websocket
Source: /usr/local/lib/python3.14/site-packages/carrier_api/api_websocket.py:48
First occurred: 10:18:31 AM (51 occurrences)
Last logged: 10:31:09 AM

ws heartbeat error
Traceback (most recent call last):
File "/usr/local/lib/python3.14/site-packages/carrier_api/api_websocket.py", line 41, in loop_heartbeat
await self.websocket.send_json({"action": "keepalive"})
File "/usr/local/lib/python3.14/site-packages/aiohttp/client_ws.py", line 261, in send_json
await self.send_str(dumps(data), compress=compress)
File "/usr/local/lib/python3.14/site-packages/aiohttp/client_ws.py", line 245, in send_str
await self._writer.send_frame(
data.encode("utf-8"), WSMsgType.TEXT, compress=compress
)
File "/usr/local/lib/python3.14/site-packages/aiohttp/_websocket/writer.py", line 79, in send_frame
raise ClientConnectionResetError("Cannot write to closing transport")
aiohttp.client_exceptions.ClientConnectionResetError: Cannot write to closing transport

Anyone have been seeing similar issues?