Hello guys, I'm facing a problem with particle surface sop for Extended Ocean, when particle separation is low, the fluid surface on bounding box apear normally, but when I decrease the particle separation the fluid surface desapear and only some splashes are meshing. When I disable the bounding box the surface mesh apear normally.

Hello,

I was facing the same issue and here is the way I corrected it.
Inside the “particlefluidsurface” sop there is a subnet called “FLATTEN” that is flattening the border of the geometry.
Inside that subnet, and after flattening the geometry the rsulting mesh is transformed to a vdb.
I just bypassed that vdb conversion and every vdb actions following the Flatten subnetwork.
I think if you did not activate the substract collision volume option of the particlefluidsurface it should work fine.