I'm struggling to make sense of something that just started happening. I have 4 recessed lights in a room, all controlled by one switch via one load wire. The bulbs are standard, dimmable LEDs (ie not smart bulbs). They've been in place a few years, with a UPB switch. I replaced the switch with a Zooz S2 dimmer a couple days ago.
Since doing so, I've had a couple instances where only one light went on.
That should not happen unless 3 bulbs are dead since they're all connected in parallel.
However, turning off and back on, all 4 went on.
This didn't ever happen with the previous switch.
About the only thing I can think of is that it's a bad connection and occasionally not providing enough current for all 4 bulbs to light up.
Anyone have any other ideas?