I began having issues sometime yesterday afternoon. I have since installed 2023.5.0. I have Nabu Casa cloud and I made sure my lights and switches are enabled on the new voice assistant page. Notifications from Alexa says the lights in question are connected. When I tell any of my alexas to turn a light on or off it makes the “I did it beep” but nothing happens. I tried logging out of Nabu Casa cloud but it did not help. There’s nothing in the logs.
Turns out most of the issue appears to be the difference between exposing the contents of echo groups and Home Assistant rooms/lights/switches with similar names. There may still be and issue with the HACS virtual switches. I’m still investigating that. More later. Neither of these are necessarilly a Home Assistant or Nabu Casa cloud problem.