ezreal bug?

Not sure if this is a bug but when you make ezreal walk toward a direction like say back into lane, and you are trying to stack tear of goddess by spamming q, I've noticed that ezreal will stop walking to destination after a few q, usually after 2 mystic shots. Can we have this changed for quality of life purposes so ezreal stops randomly walking toward destinated location after firing a few mystic shots? Thanks for reading.