Multi-material mesh tiny instances disappear

Hi, i have try to use thin instances with a multi-material mesh.
The instances appear correctly but if i rotate or move the camera right all meshes disappear.
I noticed that the meshes disappear when the position of the original mesh if out of the frustum.
I doing something wrong or is bug?

I created a playground

I tested this code with Chrome and Firefox on Ubuntu.

yup you can force it to be active in order to prevent clipping

Thank you very much.