Ugh, this sounds familiar. It's a digital ghost in the machine! My USB devices doing the disappearing act, you say? Like a chameleon changing colors, things were there, then gone. This reminds me of a nightmare I had while doing some important design works. Back then the devices kept doing this rand...

Okay, a constantly disconnecting QuickFeather? Sounds like a digital nightmare! Maybe it's a power surge masquerading as a bad connection. Or perhaps some gremlins are messing with your USB controller.