Sensor Community Sensors changes from available to unavailable every few minutes

The problem

Every minutes, state of an Sensor Community Sensor switch tu unavailable, after a few minutes it comes back., then unavailable and so on …

What version of Home Assistant Core has the issue?

core-2022.2.0b1

What was the last working version of Home Assistant Core?

core-2021.12.10

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Sensor Community

Link to integration documentation on our website

https://rc.home-assistant.io/integrations/luftdaten/

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Logger: homeassistant.components.luftdaten
Source: components/luftdaten/__init__.py:43
Integration: Sensor.Community (documentation, issues)
First occurred: 09:55:39 (4 occurrences)
Last logged: 09:57:02

Unexpected error fetching luftdaten_16510 data:
Unexpected error fetching luftdaten_8001 data:
Unexpected error fetching luftdaten_61277 data:
Unexpected error fetching luftdaten_2544 data:
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/anyio/streams/tls.py", line 108, in _call_sslobject_method
    result = func(*args)
  File "/usr/local/lib/python3.9/ssl.py", line 888, in read
    v = self._sslobj.read(len)
ssl.SSLWantReadError: The operation did not complete (read) (_ssl.c:2633)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/httpcore/backends/asyncio.py", line 31, in read
    return await self._stream.receive(max_bytes=max_bytes)
  File "/usr/local/lib/python3.9/site-packages/anyio/streams/tls.py", line 171, in receive
    data = await self._call_sslobject_method(self._ssl_object.read, max_bytes)
  File "/usr/local/lib/python3.9/site-packages/anyio/streams/tls.py", line 115, in _call_sslobject_method
    data = await self.transport_stream.receive()
  File "/usr/local/lib/python3.9/site-packages/anyio/_backends/_asyncio.py", line 1105, in receive
    await self._protocol.read_event.wait()
  File "/usr/local/lib/python3.9/asyncio/locks.py", line 226, in wait
    await fut
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/httpcore/_exceptions.py", line 8, in map_exceptions
    yield
  File "/usr/local/lib/python3.9/site-packages/httpcore/backends/asyncio.py", line 33, in read
    return b""
  File "/usr/local/lib/python3.9/site-packages/anyio/_core/_tasks.py", line 103, in __exit__
    raise TimeoutError
TimeoutError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/httpx/_transports/default.py", line 60, in map_httpcore_exceptions
    yield
  File "/usr/local/lib/python3.9/site-packages/httpx/_transports/default.py", line 308, in handle_async_request
    resp = await self._pool.handle_async_request(req)
  File "/usr/local/lib/python3.9/site-packages/httpcore/_async/connection_pool.py", line 244, in handle_async_request
    raise exc
  File "/usr/local/lib/python3.9/site-packages/httpcore/_async/connection_pool.py", line 228, in handle_async_request
    response = await connection.handle_async_request(request)
  File "/usr/local/lib/python3.9/site-packages/httpcore/_async/connection.py", line 90, in handle_async_request
    return await self._connection.handle_async_request(request)
  File "/usr/local/lib/python3.9/site-packages/httpcore/_async/http11.py", line 102, in handle_async_request
    raise exc
  File "/usr/local/lib/python3.9/site-packages/httpcore/_async/http11.py", line 81, in handle_async_request
    ) = await self._receive_response_headers(**kwargs)
  File "/usr/local/lib/python3.9/site-packages/httpcore/_async/http11.py", line 143, in _receive_response_headers
    event = await self._receive_event(timeout=timeout)
  File "/usr/local/lib/python3.9/site-packages/httpcore/_async/http11.py", line 172, in _receive_event
    data = await self._network_stream.read(
  File "/usr/local/lib/python3.9/site-packages/httpcore/backends/asyncio.py", line 33, in read
    return b""
  File "/usr/local/lib/python3.9/contextlib.py", line 137, in __exit__
    self.gen.throw(typ, value, traceback)
  File "/usr/local/lib/python3.9/site-packages/httpcore/_exceptions.py", line 12, in map_exceptions
    raise to_exc(exc)
httpcore.ReadTimeout

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 187, in _async_refresh
    self.data = await self._async_update_data()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 147, in _async_update_data
    return await self.update_method()
  File "/usr/src/homeassistant/homeassistant/components/luftdaten/__init__.py", line 43, in async_update
    await sensor_community.get_data()
  File "/usr/local/lib/python3.9/site-packages/luftdaten/__init__.py", line 29, in get_data
    response = await client.get(str(url))
  File "/usr/local/lib/python3.9/site-packages/httpx/_client.py", line 1736, in get
    return await self.request(
  File "/usr/local/lib/python3.9/site-packages/httpx/_client.py", line 1513, in request
    return await self.send(request, auth=auth, follow_redirects=follow_redirects)
  File "/usr/local/lib/python3.9/site-packages/httpx/_client.py", line 1600, in send
    response = await self._send_handling_auth(
  File "/usr/local/lib/python3.9/site-packages/httpx/_client.py", line 1628, in _send_handling_auth
    response = await self._send_handling_redirects(
  File "/usr/local/lib/python3.9/site-packages/httpx/_client.py", line 1665, in _send_handling_redirects
    response = await self._send_single_request(request)
  File "/usr/local/lib/python3.9/site-packages/httpx/_client.py", line 1702, in _send_single_request
    response = await transport.handle_async_request(request)
  File "/usr/local/lib/python3.9/site-packages/httpx/_transports/default.py", line 308, in handle_async_request
    resp = await self._pool.handle_async_request(req)
  File "/usr/local/lib/python3.9/contextlib.py", line 137, in __exit__
    self.gen.throw(typ, value, traceback)
  File "/usr/local/lib/python3.9/site-packages/httpx/_transports/default.py", line 77, in map_httpcore_exceptions
    raise mapped_exc(message) from exc
httpx.ReadTimeout

Additional information

No response

[RuudvanMunster]

This issue is still very topical. The problem occurs regularly for me as well. Please do not close this issue yet.

[LuckyTriple7]

If the API is unreachable or overloaded, the last value should be preserved for a period of time.