Adding 2nd Deformation chain removes drawing layer from timeline

If I create a drawing-1, and put a deformer on it, then on drawing-2, when I add a 2nd deformer, the drawing layer disappears from the timeline. It is still there in the X-sheet and but not in the timeline. I prefer to work in the timeline, so I hope you can get the drawing layer back with two or more deformation chains.