Why are particles are missing, when using Volume/Grid Emission? I'm having an issue filling a cube with objects using a ParticleSystem.  It's as if a diagonal plane has cut through the cube and eliminated particles.  This doesn't happen to the front plane of particles though, which can make it difficult to tell that it's happened from that view.

I only added the UV Spheres to help visualize the problem.  They don't have any affect on the missing particles.


I've tried many setting, including, but not limited to;
Changing the particle size, Cube Scale, Resolution, etc...
I also tried double clicking Hexagonal Grid (I heard that will sometimes set things straight).

Thanks for any help.
One way to solve this is to bevel each vertex of the cube very little. Tab into edit mode. A to select all vertices. Press Ctrl+V and select "Bevel". Then give it a very small amount of Bevel Offset (I used 0.001 here). Then Tab out of edit mode and it'll work.



Another simpler way to do it is to select all the faces and hit Ctrl+T to triangulate the faces.