Boids doesn't render object with hairs... is it a bug?

I’m trying to do school of boids. I choosed my object with hair for visualization, but blender doesn’t render boids with hairs. Strange because sometime it works. I don’t know how, but I did it once (method tries and errors :wink: )

Could somebody help me with that? What I should to turn on to works.

My blender is 249.2 32bit (sabayon package)

Ok, problem solved, I don’t know what I did wrong.