This reminds me of an issue I was having while using the HueBridgeEmulator. There were approximately 6 devices in my list which were NOT found during discovery and didn’t even belong to me. They had names I know I would never use for a device in my home. This made me wonder two things
- How can devices be added when I never did another discovery ?
- Were were these devices coming from ? Could it be a neighbor’s hue devices somehow detected by my network or could was the Amazon database getting corrupted somehow ?
I have had this happen to me twice now and on both occasions I just forgot everything and did a discovery to make the junk go away. If it happens again I plan to leave the junk there and contact Amazon support.
Both of these questions relate to your issue.
- is your echo doing it’s own discovery ?
- is amazon’s database having issues that reset your “forgotten” devices back to being present ?