I’ve found that most LED bulbs work well with my Vizia RF+ dimmers, but I have found some bulbs that exhibit that same behavior. I have three BR30s on one dimmer and bought some LEDs last weekend to replace the incandescents and they would not turn off. I had to leave one incandescent in place for it to work. I may try and find some other (ie more expensive LEDs) for this application, but since the incandescents are only 15W each, it’s really not worth it.