Challenge bug: Defeat Map Bosses in Ritual

If you rush the map boss and it has ritual you get credit for it.
In all subsequent rituals the map boss appears, but you get no credit for killing it.

Hello, is there any updates for this? I'm doing the challenge now and I basically have to do 200 maps with ritual and the ritual has to spawn on top of the boss otherwise. This challenge is taking longer than the GGG challenge which im almost halfway through

No update. However the fastest way to do the challenge is to run glacier and capture the boss in blood filled vessel. The mini goats at the boss room are unique so you can get 6-9 boss kills and bosses in blood filled vessels.
Theoretically with glacier you can do it in about 66 maps by yourself (With full ritual atlas passives I get a boss room ritual about 1/5 maps).

If you could search for rek'tar in blood filled vessels you could potentially just trade for them and do the challenge in 6 maps :p (4 vessels, nine bosses per vessel)