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Hello there, I'm a total newbie, it's just my first month in Houdini, and now I'm quite confused with situation i've got here.

I'll try to explain step-by-step.

I'm creating a sphere, fracturing it with shatter shelve tool, then I define it as RBD Fractured object, and then use Debris shelve tool on it.

Then, as I want these particles to emit smoke, and use, let's say, Billowy Smoke shelve tool from PyroFX shelve, on Debris object in the /obj/ level.

It's working now.
Sphere hits the groundplane, shatters, emit particles, which is emitting smoke.

But when i change anything in Fluid Source node, called create_density_volume inside of Debris object, let's say, Sample Distance in Stamp Points section, everything goes wrong.

Container for smoke is getting fullfilled by smoke and not turning back any way.
I've tried it on two different versions of Houdini 13, with the same result.

I've attached two files, before and after this deadly change.

But you can try to do it yourself, in case of nothing like this will happen.

Hope for your help, sorry for my english.