It varies depending on the mode you are on. They can represent track progress, phase, effects, etc. It’s worth noting the X1 does have a split mode (described in the user guide) and the LEDs can show both deck’s functions so that’s why they might have confused you.
Thanks for the reply. I know that it splits the touchpad between the two decks and that’s what the orange LEDs are showing. I was looking at the blue LEDs as if they were split between the two decks but they still didn’t seem to match up with track progress when I compared them with the screen on my laptop.
I guess I just need to keep playing with it for a while until it makes sense