I have two Bose Soundtouch 10 speakers under Things in SmartThings, yet they don't appear when attempting to Authorize Things in ActionTiles.
The default Device Handler that they are both using is LAN Bose Soundtouch. I went as far as modifying the two devices in IDE to use Device Handler "Bose Soundtouch" but this didn't change the results. All of my other Things appear under Authorize Things correctly.
These speakers are Works With SmartThings certified so I'm classifying this as a bug as per Terry's instructions.
Customer support service by UserEcho