Broken White Pixels appear on model whatever it moves

Hello, I was testing the animation using model, and suddenly, I started to see some of model parts came out with white broken pixels in some of movement.

I thought it may be the lighting problem (it could be a material problem too), cause I saw those pixels gone when I deleted some of the lightings I used.

But still, it is uncomfortable to give up the lighting option, so now I am wondering what the exact solution needs to do for this problem.

Thanks in Advance!

I’ve seen that happen before when the model has two triangles/quads on top of each other in the underlying mesh. I believe they clash in the z-buffer so you get the weird effect. May not be your issue but its happened to me before…