Idk i never seen any animation showing i got a blueprint and i sure did not have any card for those in 1.11, but one day I checked my skins and saw I have a few of blueprints(SAW T3, adagio R, SE, skye t1, etc)
Don’t forget, when they first introduced blueprints, they said the skins that you already had most of the cards for would be given as a free blueprint with the update.
They should add the golden border to blueprints and have the “Blueprint Unlocked!!!” text similar to hero and skin. I’ve gotten 5 skins since the update without noticing, now I make it a habit to check my skin sections around once a week lol.