I updated my main NodeRED instance running native on a Pi to 4.1.1 this afternoon and nothing that's programmed to use this skill from @hardillb seems to be working this evening.
Anyone else having difficulties?
The Node-RED update didn't change anything, you just picked the wrong time to do it.
and
But mainly just ask "Alexa, Discover devices" so it knows to use the new skill format for the devices.
The discover devices sorted me out 
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