It's been many years since they were wired, but I would quess the're wired in the same sequence.
Sometimes the lights are left dimmed down overnight and I turn them off in the morning because the kitchen is very bright from the skylights. That day I didn't turn the switch off because the bulbs weren't lit in the morning so I assumed it was off and it stayed that way all day until the Mrs came home and thought I was playing some early Halloween trick.
I'm not sure if strobing is the right word for what they were doing. One turned on and then off and the next and next and then back to the first one. It only happened when the dimmer was in a very specific position.
That night I was able to repeat it several times by finding that specific position. Since then I tried a couple times but haven't been able to repeat it yet. They appear to be working normally.