SmartThings integration broke when upgrading to 2021.4.4

ST integration broken when I moved to 2021.4.4. Fortunately switching back to 2021.1.5 resolved it. Something has changed with the ST Integration?

Logger: homeassistant.setup
Source: helpers/
First occurred: 3:21:03 PM (1 occurrences)
Last logged: 3:21:03 PM

Error during setup of component smartthings
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/", line 241, in _async_setup_component
    result = await task
  File "/usr/src/homeassistant/homeassistant/components/smartthings/", line 58, in async_setup
    await setup_smartapp_endpoint(hass)
  File "/usr/src/homeassistant/homeassistant/components/smartthings/", line 275, in setup_smartapp_endpoint
    else webhook.async_generate_url(hass, config[CONF_WEBHOOK_ID]),
  File "/usr/src/homeassistant/homeassistant/components/webhook/", line 60, in async_generate_url
    get_url(hass, prefer_external=True, allow_cloud=False),
  File "/usr/src/homeassistant/homeassistant/helpers/", line 83, in get_url
    request_host = _get_request_host()
  File "/usr/src/homeassistant/homeassistant/helpers/", line 123, in _get_request_host
    raise NoURLAvailableError

Mine’s working fine through both 2021.1.4 and 2021.1.5.

Thanks - have you tried 2021.4.4?

Check whether an Issue for this problem already exists here: Issues · home-assistant/core · GitHub
When not, create one.

Thanks, submitted the log

Sorry, I mistyped. I meant 2021.4.4 and 2021.4.5 (and also now 2021.4.6)