Random Blue Buff Bug [Gameplay]

Ok so this happened a couple of weeks back... i think i was playing . Anyway, we were winning the game and i thought of getting the blue buff at the red team side. As i started attacking my team needed help nearby so i stopped attacking and left...but as i was leaving my teammates had it covered, so i return to the blue buff again. Surprisingly enough,as i started attacking the blue buff again, one of my teammates got ambushed. And of course i left the blue buff again and went to help.And, AGAIN my teammates had it covered. So, confused of what was going to happen next i return to the blue buff only to find out it wasnt attacking me at all!!! I started auto-ing it but it just stood there.Oh, btw it had not returned to the actual spot where it normaly stays. Instead it was standing somewhere where the blue buff side monsters stay.