Alexa stops searching for devices about node-red-contrib-amazon-echo

[Barabba11]

An update, after the last restore of the flows (from clipboard backup) I had to delete and search again all devices, this time Alexa also replied me with a "refuse" sound so I delete manually devices from the account in the web site of Alexa, remove the Echo device, long press configuration button so it can reset to default, add Echo device again, and search fro devices.
ANd here another suprise, another "refuse" sound, not more the "it will need 45 seconds to find devices and bla bla". Then I tried to search devices from the web page, and after some minutes Alexa started tell "I've found blabla", and slowly I start to see the devices on the Alexa app.. it took some time and different "rounds" to find more, I?m not sure if she discovered all of them.
It seems some bugs on the new firmwares