Blue essence ward.

Hey! I bought the blue essence ward when the shop became available and after the most recent patch I believe I am no longer able to use it. It has disappeared from the ward skin selection on my client. I first noticed that the ward skin that I had selected just wasn't showing up (looked as though something was selected but there wasn't a picture of what it was) and when I tried to click a different option to then click back it just wasn't there at all as an option.