Had a glitch facing jinx and annie

So I was playing and supp was we faced and . Well we went too far and annie burst sona I ran like hell with maybe 200 hp I get to tower and look at the map and all I see is 's giant rocket coming at me so I luckily dodged it.... it flies off the map, but then an explosion happed and I freggin died from it.... Like wth? My ping was 80ish with 60 fps and sona was around same idk if they were lagging, but would that be hit detection or lag issues??

Anyway it gets better we killled and chased to the tower. She starts recalling right behind and we both run up on the tower with the minnion wave. uses her q and we both see the dmg register, almost dies, but a second later is still recalled....

So... game mechanics failed or they lag-glitched?