This is interesting. I previously wrote some LUA that was using the AS3000_TSC_Horizontal_1_TopKnob_Large_INC style references using the "number 1" to represent the left/right 580 and that was working. I have to mention here, that that event was used with Mobiflight on an overlay I created for Air Manager. That being said, the "1" used to control the left 580 and a "2" controlled the right 580, and "no number" controlled both, just as stated here. I am also using the Working Title G3000. Now, today, I am seeing the same problems that are being discussed. My 580 overlay stopped working completely. When I removed the reference numbers for the left/right 580... guess what. Everything works again. The only thing is I have lost individual control of the two 580's. Pushing a button or turning a knob does so for both instruments now.