[CLIENT] Small area where you cant click to buy items

So when you are in the in game shop, you can buy items. It happend to me more then once that i already clicked in game to leave the fountain, and tried to quickly buy my item. Sometimes i fail buying the item even though I am in buying range. I finaly know why.

So in the attached picture there are 2 area's that make you able to buy the item by (default) double clicking on the item twice, or clicking the item with the right mouse button once. In the area with the 1 and 3, it works without problems. But in the area between 1 and 3, there is a line. it is marked with a 2. It is probably a line of 1 pixel , but in that area you cannot left click or right click to buy it.