I have 3 of 12 Casetta dimmers that become un-paired from either Pico remotes or 4-button remotes when I add them to the Lutron iOS App. Once un-pared, I am unable to re-pair them - holding the off button never puts them in pairing mode. Resetting them to factory settings allows me to re-pair them until I add them to the App. Rinse, repeat...
I have also tried adding them to the App before pairing them. In this case again I am unable to pair them.
The other 9 dimmers work correctly, both paired and added to the App.
Any ideas are appreciated.