Double blight encounter. Wasnt it removed?

Just found 2 cassias on my map. Using gilded blight scarab.

Wasnt it impossible to have more than 1 cassia per map? Didnt they remove the chance for this to happen and swapped for the blight map device craft?

i had 2 before too, this league

they changed it this league to remove the possibility for double cassias during map. I dont understand how I could get 2 cassias besides it being a bug. If its not I would like to know how to spawn 2 cassias so I can farm more blight. Really need some support info here

Patch 3.20.1:

The Blight Atlas Passives that provided your Maps with Blight Encounters a chance to contain an additional Blight Encounter have irreconcilable issues that result in areas with two Blight Encounters failing to generate reliably, so we have replaced these stats.
The small Atlas Passives now provide "5% chance on Completing your Maps to gain a free use of the Blight Map Crafting Option."
The small Atlas Passive at the entry of this cluster that provided your maps a +4% chance to contain a Blight Encounter now provides "Lanes of Blight Encounters in your Maps have 5% chance for an additional Reward Chest" and "2% chance on Completing your Maps to gain a free use of the Blight Map Crafting Option."
The Mycelial Swarm Notable Atlas Passive now provides "Blight Map Crafting Option is always available" and "50% reduced cost of the Blight Map Crafting Option."

I've noticed this in past leagues, seems to get more uncommon as the league goes on.

They removed the Atlas Passive that gives % chance of a second added encounter.
You can still get multiple by natural spawn + scarab.