Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - Help/Tips/Tricks Path of Blood puzzle bug? (Crypt) (Solved) SPOILER

I had the exact same problem!
If you bless the puddle of blood and it reaches the bowl but doesn't trigger it, just cast Rain of Blood on the far right edge of the pipe puzzle. You won't extinguish the other flames and the quest will progress. Just repeat if it doesn't work the first time.

This worked for me, I hope it does for you too!

GL!