Blocky smoke simulation doesn't change shape or makes a dark flash I've been trying to make several smokes simuations.
I'always end up with 2 types of results :

1st one  is this strange compact &amp; blocky  smoke that never change it's shape even if going upward....

what my smoke look's like

I've tried a few things to stop but nothing's working, changing resolution division or particle emmiter scale etc, standing still...

Or, but still rare, that my smoke do not form anything, but when my frames are re-looping, make a strange kind of &quot;dark&quot; flash and disappear the next 5 frames....

PS : i'm using Blender 2.9.1 &amp; Cycles render engine.
Problem solved by turning Node Wrangler off, relaunching and baking again... idk why .....