Rek´Sai Tunnel Bug

While playing Rek´Sai i place my tunnels across the map connected to each other so that i can move quickly to other lanes or to escape while being chased. The Bug is the following: I go through a tunnel and while travelling im clicking the next one to be faster. When i come out of the first one the second tunnel is being used too and goes on cooldown but without me going through it. If you are on an escape that can be irritating.