Confirmed A number of old cards don't have their security stamp anymore.

[Neo001992]

Game ID

n/a

It appears that a number of rare/mythics no longer have their security stamps. Seems to be effecting most double faced cards that transform, as well as all of Ikoria, Theros Beyond Death, Core 2020, and gift pack of 2018.

https://imgur.com/a/djeYXik

 

[Neo001992]

This also seems to be effecting Battlebond, Jumpstart, and some of the Treasure Chest cards. The client also weirdly enough displays the security stamp on the wrong face of Havengul Laboratory.

https://imgur.com/a/rcNaTJA