I received 40 gems for my paid mastery pass mythic ICR instead of an actual card. This behavior reduces the value of the mastery pass and introduces uncertainty in the buyer. It has wasted my time and now yours and some bit of hard drive space to store the log.

This has happened to me three times already

almost all the ircs I receive are from cards that I already have 4 copies

And again with Righteous Valkyrie.

And again got a 5th copy of Luminarch Aspirant

Got a fifth copy of Legion Angel today out of the Midweek Magic event

Same! I just received a 5th copy of Elite Spellbinder as an ICR from my daily reward.
I play mono white mostly so I 100% already had 4 copies.

I received a 5th copy of The Bears of Littjara as a prize for winning a game of What Was Written event.

The 5th copy protector is not working well.

Got a ICR and opened my 5th copy of Halvar, which I crafted a long time ago.

This happened to me now twice with Closing Statement.

The same thing has happened to me twice now with Closing Statement.

Same problem. This has happened at least three times. Event rewards are rewarding me with a card I have a playset of instead of gems.

Duplication of rares are not working. It's not the first time it happens. But know I'm sure of it. I've received an needleverge pathway and I already had 4 of it.

Hi Wizards,

Since the Alchemy update I have twice received copies of rare cards I already own four copies of: Triumphant Adventurer and Inscription of Ruin. I did not receive any gems. One was in the Midweek Magic event, which isn't duplicate protected afaik, but the other was a daily reward which I think is protected.

When you say 5th copy, do you mean of the Crimson Vow printing of Thalia? There are multiple printings of Thalia on Arena

I opened a crimson vow booster and received a 5th copy of: Thalia, Guardian of Thraben.
The 5th copy protector is not working well.

I recieved a 5th copy of Goldspan Dragon as an ICR instead of gems. I already had 4 copies...