that is most likly the issue, what does the plugin report for L2 and R2? If its an axis your going to have issues. However, most of those types of triggers also trigger a button. Either from a light press or hard press. So in the plugin you needs to either light press the trigger when detecting or have it held all the way down when detecting. It may take a lot of experimenting. Once the plugin shows a button in there box you got it.