GAMEBREAKER BUG ABILITY TO BUY THE JUNGLE ITEMS WITHOUT SMITE

Ok so i just played a renekton game and started with a brutalizer. After being fed about 6 kills i decided to back and when i opened up the shop screen. I saw that the brutalizer upgrade into the jg items wasn't x'ed out so i was like wth lets buy it. Immedaitly the item dissappears the gold dissappears and i cannot refund it. I basically just lose the gold and the item. I wasn't able to record is at the time and a screenshot wouldnt do much. i put a link to the game tho. This is ridiculous. I havent tried to replicate it or anything