Coin mana glitch.

If you get a mana coin to spawn when you are full mana, you can sit ontop of the mana coin and use an ability, the mana coin will constantly just bounce up and down in place and not give the mana. If you move it will give the mana but if you stand still it won't give you the mana. This isn't that big of a bug but it is something I found out while playing support. It worked every single time I tried to do it.