Hello! I just installed Caseta switches throughout my apartment and I can't get the last switch to make it through the setup process. When I hold the off button for 10 seconds to get the leds to blink quickly, the leds start blinking slowly at around 8 seconds and it never makes it into setup mode. Does Lutron publish error codes for these switches anywhere? Also, turning the lights on/off stopped working. It was definitely working for at least several minutes when I first installed the switch. If it makes any difference: this is an interior switch which controls 2 or 3 exterior lights on the roof of the building. I'm worried that I've wired something incorrectly and I'll be calling an electrician tomorrow unless anybody knows of a more obvious fix? Thanks!