hi
can anyone help me why in houdini 18. when i:
create sphere
select the sphere
on the pyrofx shelf tab i press billowy smoke i got a msg like this
and not only this almost every shelf tools i click is like this…
this never happened to previous version such as 17.5, or 17
whats wrong with it?
did i set the wrong env?
do i need to install another software?

Fixed it by deleting houdini 18 folder in document folder

from what I've witnessed before it seems like you have accidentally overriden your subnet type with an HDA of the same name, Houdini would then not only not use the original subnet or your asset, but it would replace all subnets with merge node

so just make sure to remove subnet type definition from
$HOME/houdinix.y/otls/OPcustom.hda
or if the whole library was unintentionally created and doesn't contain any HDAs you want to keep, just delete the whole file, or back it up somewhere just in case