[Bug: Lost Riven mod while doing the task.]

Happened to me yesterday Twice.. 

I thought i must have made a mistake, so i did it again today just to be sure, Unfortunately Unlocking two of the same Definitely destroys one.

I'm down 3 Rivens in the last 24hrs now..😅

I do believe I've had this happen in the past as well at least once, just didn't really think too much of it.