Class field lost value!

[WojTec]

:D

I'm talking about Layer variable:

Delphi-Quellcode:

var
  Layer: TCustomFilterLayer;

Before editor open and in editor constructor typecasted on TBrightnessAdjustmentLayer:

Delphi-Quellcode:

TBrightnessAdjustmentLayer(Layer).Amount

Amount field have value as should have, after window open value is 0.