Our smart home skill is encountering a strange issue that I am not sure how to resolve.
All of a sudden it has stopped recognising discovered devices for commands. I haven't changed any of the skill since mid-October. The last change (which was a few days ago) was just to add support for Canadian English which didn't require any code changes. I can't imagine adding support for a new language caused issues with the existing languages?
For example, I have devices called "Lounge" and "Den" but if I ask Alexa to turn these on "Alexa, turn on Lounge" or "Alexa, turn on Den" it will respond with "I couldn't find a device or group named Lounge in User's profile".
Likewise, if I ask it to "Alexa, resume Den" it will respond with the same error message.
What is even more baffling is that is appears to be intermittent - occasionally the command will work but normally it won't.
Has anyone else encountered this issue? Has there been an API update that I have somehow missed that could be causing this issue?
Thanks for any assistance.