Burst fire dart gun?


So i was shooting darts at a charlie and i hit 3 crits back to back so it was running fast. So i was sliding fast to catch up to it and when i released my dart,i shot 3 darts at once and two of them hit the dino at the same time. Afterwards,i lost my HUD for the rest of that dinos time so basically i was shooting out of memory afterwards. Later this happened thrice more. I dont know what causes this. (If i knew i would use it at the last 3 seconds of every dinosaur i hunt). I cannot repeat it on purpose but sometimes it happens and i am sure this is a bug


This exact thing has happened to me before as well.