Support gold item breaking the shop
This issue has happened twice to me in the past three days when I have been playing Morgana support, and has happened twice to lulu supports on my team.
The bug has happened when I (or Lulu) had some form of 
and then attempts to build some form of support item ( 
for me the first time, 
for me and lulu the other three times)
When the bug happens your gold doesn't show properly, you are unable to purchase certain items even if you have the components and enough gold, and all other items in the shop light up showing that you can purchase them when you actually cannot.
and