I get a notification of failure to setup emulated hue after updating to 2021.7.4. This from the log:
Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/setup.py", line 249, in _async_setup_component result = await task File "/usr/src/homeassistant/homeassistant/components/emulated_hue/__init__.py", line 133, in async_setup listen = create_upnp_datagram_endpoint( File "/usr/src/homeassistant/homeassistant/components/emulated_hue/upnp.py", line 73, in create_upnp_datagram_endpoint ssdp_socket.setsockopt( OSError: [Errno 99] Address not available
And from the Core log:
2021-08-02 09:45:47 ERROR (MainThread) [homeassistant.components.hue.bridge] Request failed 3 times, giving up