"Masked Carnivale - Eye Society" + Self-Destruct Results in a Loss

Date & Time: June 14th 2025, 6am EST
Frequency: always
World name: Sargatanas
Character name: Taka Gabbiani @ Sargatanas
Monster name: "Arena Mandragora", "Arena Eye", "Arena Catoblepas"
Class/Level: BLU 80
Party or solo: solo
Steps:
1. queue for the Masked Carnivale duty "Eye Society"
2. win the first phase by any means
3. use the ability "Self-destruct" to knock out all 4 enemies in the second phase

Connection Specs
- Type of internet connection/provider: fiber

Unlisted YouTube video: https://www.youtube.com/watch?v=7GZ9LR15fMc

Expected behavior: this should result in a win, not a loss. For other duties in the Masked Carnivale using Self-destruct to simultaneously knock out all enemies and oneself results in a win.

Observed behavior: duty failed. Potentially related, the names of the enemies killed in the attack appear very late in the battle log.

Potentially relevant: my character has a lot of spell speed. It also does not seem to matter when I cast Self-destruct. If I cast it too early and I explode before "Duty Commenced" then the enemies take no damage, as expected. If I begin casting the spell before Duty Commenced, and I explode after, then I knock out all enemies and still lose. In the Youtube video I wait until the words "Duty Commenced" even appear on screen before I begin my cast, and I still lose.