Logger.set_level not working from UI (0.83.1)

I was trying to debug something this morning and I went to the developer tools Services tab and did:

logger.set_level

{"homeassistant.components.automation":"debug"}

…and nothing happens. There’s no change in debug level of automations. I can use logger.set_default_level to change the default level, but can’t set the level of an individual component.

interestingly,

{"homeassistant.components":"debug"}

seems to set the debug level at the “components” level, but then there’s a lot of noise in my logs.

I can also set it in configuration.yaml but then I have to restart HA, which is a giant PIA when I’m trying to debug automations involving z-wave components and it takes 5 min for the z-wave network to be ready.

This used to work for me - did something break recently?