Hello to you, and welcome to this forum. I am the happy owner of a Sprocket plus myself, and found it to be a great little product. I feel that I have had a similar problem, when I tried to pair one of my devices with my Sprocket when another device already was paired with it. It didn't work, and then I found in the manual that it cannot be paired to more than one device at the same time. So I suggest you remove it from the device you don't need any more, and then pair your sprocket with the device you intend to use in the future.
Hope this helps. Have a wonderful and blessed Christmas.