Apologize if this is a duplicate/repeat of the issue I filed on Github. Not sure which is appropriate to file.
Anyway, I have multiple Generic Sensors in the same room and only the first instance is appearing in Imperihome. Here is my relevant .items file.
String RokuSE "Roku SE: [%s]" ["iss:type:DevGenericSensor", "iss:room:Roku", "iss:label:RokuSE"] <television> (Rokus)
String Roku3 "Roku 3: [%s]" ["iss:type:DevGenericSensor", "iss:room:Roku", "iss:label:Roku3"] <television> (Rokus)
String Roku4 "Roku 4 Premiere: [%s]" ["iss:type:DevGenericSensor", "iss:room:Roku", "iss:label:Roku4"] <television> (Rokus)