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I think that the triggers that actually communicate completion to the LMS are the "Submit results" trigger (if you "Track using a quiz result") and  the newer "Complete course" trigger (if you "Track using complete course trigger"). We avoid tracking based on slide views because it causes too many support headaches when someone insists they viewed all the slides and we don't have a good way to dispute their assertion. I don't think it should matter how the course is exited as long as one of those triggers is in place.