"Use eldritch altars" challenge accepts wrong altars

I was just granted completion for part of the "Use Eldritch Altars" challenge, that requires you to defeat a rare map boss after activating 6 Searing Exarch altars, while "Wrath of the Cosmos" is allocated.

However, I was in a map with Eater of Worlds influence, not Searing Exarch. The map also had Elder influence, and the Eradicator guardian boss was present. I did have Wrath of the Cosmos allocated.

(This is the only part of the challenge affected this way; I have 0/250 for Searing Exarch altars activated otherwise, which makes sense as I have only been running Eater of Worlds.)

Can confirm, still bugged, wish I knew this earlier....

Damn if I was running Eater maps I could have saved me so much hurt if I knew about this.