Issues Action light.turn_off not found

[TEF2one]

Following the udpate of nodered v4.1.1, I noticed most if not all my HA action nodes now show an issue Action not found and for the most basic action like light.turn_off, cover.close_cover, switch.turn_on ....
This is very strange because as far as I can tell the actions are still working.
But when I create a new action node indeed these actions are visible in the drop down list.
I am unsure what is going on here, if this is a bug or a configuration issue...

[zachowj]

When Node-RED connects to Home Assistant, it retrieves all available services. My guess is that Home Assistant either didn’t send the full list (which can happen occasionally) or something else interrupted the connection. If you restart Node-RED, does the issue resolve itself?

[TEF2one]

Oh well that was simple, I didn't even consider a reboot which is always the first step of any troubleshooting...