Failed to call service homeassistant/restart

Configuration
1

When I use the services panel to restart HA, I continuously see the message ‘Failed to call service homeassistant/restart’. What could be wrong?

Using RPI3b, Jessie lite, HA 0.41 (and 0.40.1 and 0.39.0) in virtualenv.

I have reverted to a standard (empty) config, still seeing the error.

2

Perhaps it has to do with this in my log?

[aiohttp.websocket] websocket connection is closing.

This occurs when I hit the ‘call service’ button.

The service seems to be restarting, but I also don’t see the “Reconnecting…” message.

3

I have had this for about a month now. HA gives the pop up ‘Failed to call service homeassistant/restart’ but it does call the service.

4

It’s awkward. 'Till yesterday I was running on a pi 2B without issues. Last night I installed my new Pi 3B and since then the issue is here. There are related issues in the repo.