Sprite just disappear on scene mode

So far I know, only sorting layers changes the visibility from a sprite over other. However, when I changed a layer from "Default" to "Foreground" the sprite became invisible, I don't know why and never figured it out before.

There is no overlay Sprite and if I change the layer to anything else but "Foreground" it remains visible.

NOTE: Gameobject still exists even the Sprite Render as well, everything remains the same but its visibility. The Culling Mask is OK (everything), this issue occurs on scene mode NOT on the game mode.