I have one of my Iris open/close sensors that no longer detects open/close. It is reporting temp fine, as well as battery %. Have tried all the normal reset stuff. When I re-insert the battery it updates Smartthings with current battery/temp - so it’s talking to SmartThings. I’m thinking it’s the sensor itself as even when I wave the magnet next to the sensor the LED doesn’t flash on the sensor like all the rest do. Thoughts? I’m just barley still in the 1 year warranty…do you just take them back and exchange them directly at Lowes? Couldn’t find anything on warranty policies on these things.