These are some common but big beauty bloopers that celebrities have also committed. You should use powder to fix the makeup, but bathing in powder would not solver the purpose. In fact it will look like flour powdered face, Which is not at all pleasing.
It is more likely to happen with mineral powder or silica based powders. Both of them reflect light. When you use too much of powder, in light, it may look like this.
The another possibility of looking like this, is when the powder is not even on all over the face. So before you move out just check your makeup in the maximum light. Light always shows you imperfections in makeup and you can be spared from looking flour powdered.
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