I use this pro switch to control LED cabinet lighting in the kitchen. When turning the lights on from an app (lutron, homekit, alexa etc), the lights flash on and off. On subsequent attempts, sometimes the lights stay on. The more I try, the more likely eventually they stay on. When I use the physical switch itself I never have this problem - that is, always first time on as you would expect. I have the LUT-MLC capacitor installed across the load. If memory serves, performance was even more erratic without the capacitor. The load is LED strip lighting, with the capacitor across the 120V line, which feeds a 12V transformer for the LED lights. I am wondering if changing the size of the capacitor would help, or if there is some adjustment to the switch possible. Also not clear why it is an app only issue ... ? I use Caseta extensively throughout the home -- dimmers, switches, lamp plugs, regular and pro. This is the only problem I experience.