1. Set Klee as my character for co-op. 2. Make sure I'm at full health and warm. 3. Go to the challenge marker, get matched to co-op. 4. Get white loading screen. (ugh) 5. When the game comes back, the challenge is already in progress, Klee has 0HP, there's a revive prompt. 6. Revived Klee is on the other side of a force field unable to help and Diluc is yelling at her to click the light. 7. There was no light. 8. Challenge failed.
Solo, I can clear it in about a minute and a half with a party of Anemo traveller, Klee, Fischl, and Qiqi (and sometimes be at full health at the end of that). Nobody needs to yell at Klee.
How bad was it? Here's how my co-op attempt went:
1. Set Klee as my character for co-op.
2. Make sure I'm at full health and warm.
3. Go to the challenge marker, get matched to co-op.
4. Get white loading screen. (ugh)
5. When the game comes back, the challenge is already in progress, Klee has 0HP, there's a revive prompt.
6. Revived Klee is on the other side of a force field unable to help and Diluc is yelling at her to click the light.
7. There was no light.
8. Challenge failed.