Puzzle Lab: In the final Survival lab, Dr. Boom will kill you with his hero power before you finish making preparations

[Jetz72]

https://www.reddit.com/r/hearthstone/comments/bwqgfc/bug_dr_boom_survival_1_makes_it_impossible_to/

https://v.redd.it/sagiq2c25d231

The puzzle quest triggers, the hero power fires, your hero takes 40 damage, and the puzzle resets.

https://us.forums.blizzard.com/en/hearthstone/t/boomsday-project-adventure-unclearable/7339

You can’t clear the first puzzle of the Boomsday Project last level (survival with Dr.Boom). His hero power will randomly activate when playing your cards (try it by yourself).

Acknowledged by Blizzard:

Thanks for the report! I confirmed that it does happen after refreshing your mana and playing the next card. We will have this looked at.

[Jetz72]

https://us.forums.blizzard.com/en/hearthstone/t/boomsday-project-bug/7399/16

Yes it should be fixed now, do let us know if you are still seeing the puzzle automatically ending.

[Jetz72]

Fixed.