It won't fire arrows on charged attacks some times. It happens pretty often, here is a video showing the issue in slow mo. Maybe do animation cancel allowing for charge attacks to work even if it does 2 at once. Though someone can ping spike their self which is easy and spam charge like 20 attacks which goes off all at once after their ping returns to normal. No benefit from doing that but in towns I would say it is annoying to some.
https://youtu.be/nX4h0zlTEIY