sensor.[smart_switch_name_unit_name] has unknown unit US Gallons

[mat1583]

The problem

I have an Aeotec ZW096 for measuring power consumption of my washing machine. The switch also has a Meter value called Water Consumption [US gallons]. After upgrading to 10.x (currently on 10.7) I see this error in the logs:

Logger: homeassistant.components.sensor.recorder
Source: components/sensor/recorder.py:264
Integration: Sensor (documentation, issues)
First occurred: 11:55:10 AM (1 occurrences)
Last logged: 11:55:10 AM

sensor.washing_machine_smart_switch_water_consumed_us_gallons has unknown unit US gallons

What version of Home Assistant Core has the issue?

2021.10.7

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

Sensor

Link to integration documentation on our website

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

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[probot-home-assistant]

sensor documentation
sensor source
_{^{(message by IssueLinks)}}