Hi,
I had some time today and went ahead and installed a completely fresh debian 12 with opdenJDK 17 and installed a new openhab 4.2.0 instance.
Then I created a single Switch Item with the Alexa Metadata Light via the UI.
I then installed the Cloud Connector and updated the UUID / Secret in myopenhab.org to connect with the new openhab instance.
Then I removed the openhab Skill in the Alexa App and painstakingly removed every remaining connected Smart Home Device in the Alexa App.
Then I reinstalled the Skill and reconnected it to myopenhab and discovered the single item I had created earlier.
Then when I try to control this item, Alexa does manage to switch the item, but still complains about the Device is not responding with every command.
I am a little bit lost now.
Maybe I will try to host my own openhab cloud as described here
https://community.openhab.org/t/hosting-your-own-openhab-cloud-instance/134441
Or are there any other debugging steps left?
Should I get a trace log from openhab and post it here?
Maybe I might also try downgrading and see if that resolves the issue…