Why my entites is invisible if i use shade-c or some else shader code. This is my entity:

ENTITY* fader_ent = {
type = "fader.mdl";
layer = 90;
alpha = 0;
pan = 90;
flags = TRANSLUCENT;
flags2 = SHOW;
view = camera;
x = 250; y = 0; z = 0;
}

When i disable shaders everything work fine, i guess the problem is somewhere in the view stage, but i do not know how to solve this problem?