I am currently experience that the alexa skill is offline. Previously I used the Hue Emulation
Does the skill conflict with Hue Emulation? What happens if you have both? Does you sometime need to reset all devices in the alexa app and do rediscovery? Where are the json database file stored for the tagging, it might be an issue with all items clogging up the database…
I will then make a note in the documentation about theses issues:
https://www.openhab.org/docs/ecosystem/alexa/