Breach bosses from Power Struggle (Clasped hands) doesn't count for the boss kill challenge

Hi!

I'm trying to complete the Terror Tearing at the Seams challenge and I'm currently sitting at 10/50.

I thought to myself that the fastest way would be to combine Power Struggle (5% chance to spawn breach boss from clasped hands) with the duplicate boss nodes (Flaring Embers is the Xoph one).

I've killed several of these bosses and they don't seem to count for the challenge for some reason. I know the challenge is working since I'm at 10 from killing some beyond and delirium bosses earlier (and maybe a wild breach boss or two).

I'm guessing the challenge only counts the "wild spawn" breach bosses but it doesn't say that anywhere (only "in maps" where I sure am).

TLDR:
Breach bosses from clasped hands doesn't count as breach boss kills for the boss kill challenge. Is this intended or not?

Update:
Specced out of Power Struggle but still have Flaring Embers. Two Xoph's spawned naturally in a map where I had Eve of invasion proc a lot of breaches. Didn't give me credit for any of the two bosses I killed. 13/50 before and 13/50 after.

So for some reason I'm not getting credit for breach bosses.

Edit:
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Hi,

I can confirm that breach bosses in map do not count towards the challenge and I feel it is a bug.

Here is a video illustrating the issue: https://www.youtube.com/watch?v=-5NUSi7gYzg

The video was taken in a kirac mission (so no atlas influence), but I can say that the issue occurs also on non-mission maps wether the boss spawned "naturally" or from the "Power Struggle" atlas node.

I would like a confirmation wether GGG thinks it is expected behavior or not.