Fill Opacity-sets the opacity of the layer contents without affecting the applied effects.
If this option is off, the effect's scale remains unchanged when the object is resized. Scale with Object-when selected (default), the effect scales in proportion to the object if the object is resized.Fill knocks out shadow-when checked (default), if the object's fill is semi-transparent, the option prevents the effect from showing through the fill and contributing negatively.Intensity-determines how much the radius of the effect is blurred.Blend mode-changes how the effect interacts with content below the current layer.The following advanced settings can be adjusted in the Layer Effects dialog: Layer Effects-provides access to the Layer Effects dialog for more advanced settings and controls.Angle-defines the direction of the light source, shadow or gradient.There must be something else going on but without a screenshot of your comp with modified properties of the layer giving you problems revealed its impossible to say what the problem might be. The effect has been 32 bit for a long time. Press the to stop using the tool and set the angle and offset independently of each other again. Drop shadow is a layer effect and a standard visual effect available in the Effects menu. Drag on the object to set the angle and offset. Offset Tool-click to enable simultaneous editing of angle and offset.Offset-changes the distance between the layer content and the effect.Radius-controls the extent of the effect.Opacity-controls the transparency of the effect.Click the color box to choose the color from the pop-up panel. The following settings are shown on the Effects panel: