Transparent BSDF node and alpha clip

Hello,

I made a transparent material with transparent BSDF node in cycle render and inside the blend4web material I activated alpha clip for the material, but I cannot do fastprieview, it stops at 43%. While if I change to alpha blend or sort it works but its not the result that I want.
I want to know whats the problem with alpha clip, how can I have it creating the material inside cycle render?

Thanks

I made a transparent material with transparent BSDF node in cycle render and inside the blend4web material I activated alpha clip for the material, but I cannot do fastprieview, it stops at 43%. While if I change to alpha blend or sort it works but its not the result that I want.
I want to know whats the problem with alpha clip, how can I have it creating the material inside cycle render?

For now BSDF transparent node automatically enables alpha sort transparency.
43% load stop is a bug we'll fix it. We can add alpha clip option for cycles materials if needed