The secondary fissure from of gloom and flames bugs out when allocating sunderer’s domain. removing the point from sunderer’s makes it work again.
Bug also affecting these redit users but their workaround didn’t work for me :
https://old.reddit.com/r/LastEpoch/comments/1b57274/cthonic_fissure_of_gloom_and_flames_and_the/
Launched the game again today but the bug is still here.