I test my indicators. Tick on Open; 2 selected symbols EUR/USD & AUD/JPY as in image. In onTick() I print the indicators values and the instrument which received the tick. I was expected to get ticks only for EUR/USD and AUD/JPY as selected. But as you note I get ticks for USD/JPY also. Why ?. This might be a confusing problem and errors generator when testing. Also, it overloads the test. I dont need the USD/JPY ticks. What are they looking for there ?