Device duplicated and then phantom - Bug report

I had a device wiz_bd2b1e and somehow got two of them reported in from the Maker API. But I see it listed only once. I then try removing and it and adding it back to Maker (and Alexa)

But then I use the Maker API to set a value (the IP address) I get back a JavaScript error. SO I try to delete it and it tells me I have to delete it from Maker but Maker doesn't list it.

Now what do I do?

Somehow the device did disappear and I recreated the device ... and it's working now. Alas, I can't reproduce it so treat this as an FYI.