Gameplay: flash/mark the new chronobreak?

So I was playing some ARAM games, and I had a couple experiences where flash and mark did something kinda funny. The first incident was at the start of a match. I had used the mark summoner spell and it landed on an enemy Kennen. I used the engage hoping to land a kill, but instead I was returned to my previous location of about 2 seconds prior. The animation and sound indication both seemed to confirm that the mark ability was in use.

The second incident was in a match following the previous one. Except this time with the flash summoner spell. An enemy Morgana was under turret with low health. I decided to flash/ultimate to execute the kill. When I flashed, I had returned to the brush where I was standing, again about 2 seconds prior, and was unable to secure the kill. My fellow teammates had noticed as they responded in chat immediately following the glitch.

I apologize, but I was not recording the gameplay and had no time to capture the screen during the action. The games were at approximately 1630 and 1700 EST (13NOV15). I believe I have provided all available information, but if there is anything general I have missed please feel free to contact me or leave a reply to this thread.

Thank you, and happy hunting! -SC