core: Error unloading entry 'DSMname' for button - on every restart

The problem

I’m using the Synology integration. My server name is Plumbus. On every restart of Home Assistant, I see a log error as follows.

Logger: homeassistant.config_entries
Source: helpers/entity_component.py:172
First occurred: 8:16:59 AM (6 occurrences)
Last logged: 8:16:59 AM

Error unloading entry Plumbus for button
Error unloading entry Plumbus for camera
Error unloading entry Plumbus for sensor
Error unloading entry Plumbus for switch
Error unloading entry Plumbus for update
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 474, in async_unload
    result = await component.async_unload_entry(hass, self)
  File "/usr/src/homeassistant/homeassistant/components/binary_sensor/__init__.py", line 173, in async_unload_entry
    return await component.async_unload_entry(entry)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 172, in async_unload_entry
    raise ValueError("Config entry was never loaded!")
ValueError: Config entry was never loaded!

I’m unsure why this is being generated. It doesn’t look specific to the Synology integration, but I’ve not seen it on any other integrations.

What version of Home Assistant Core has the issue?

core-2022.4.1, core-2022.4

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

Synology

Link to integration documentation on our website

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

Diagnostics information

log.txt

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response