Gangplank serious keg bug

Today i experienced a really serious bug relationed with gangplank's kegs. The bug consists on not being able to double barrel over the dragon pit or over some wall areas all over the rift eventhough the range of the kegs show that they are connected, but when you q or autoattack 1 of the kegs the other one (Which shows that it is connected to the other one) Doesen't detonate (The kegs have to be in almost max range so the bug works). This is a really bad and big bug, it can happen in rankes games where you are trying to steal a dragon or where you are trying to get a kill with a double barrel over a wall. Thank you for taking your time reading this and i would really apreciate to give me some feedback if you experimented this bug as well.