Strange problem: Help me!!! (meshes clipping)

[Space-Bird]

@P19923;680013

This happened to me in Maya when i was using PNG textures, i forgot to remove the transparency on the material, i probably forgot to not make the png transparent, didnt remove the alpha channel. Maybe its something similar.

Thanks for your answer
But I dont use textures here, it’s a giant sphere object that has a Constant3Vector applied to the base color of the material.
When I am close to the spheres, I see them fine, with thel being where they should be. The problem happens when I fly really far away from the objects. I use orogin rebasing to keepe my pawn in the center.