Cyber_Dragon_EU

I've had this strange problem. When im going after a runner and try to hit them i see a visual swing but it doesn't even say 'hit' or 'miss'.
Ive tried the same thing with a scrapper and i can hit them fine. Is this a tanker thing? or is something wrong. My solution was to try taunt them as they ran and sometimes that has worked and sometimes it hasn't.

Thanks if you can help me.