Alright. I’m not sure how you went about making the drawer fronts but you’ve got some missing faces and reversed faces. Remember what I told you about applying materials. Don’t do that until the model is completed. It makes for more work and can mask problems if you do it early in the game.
Following my instructions from before and using your drawer front as a very rough guide, I drew the drawer front and on one end, drew the profile of the cut which is shown selected.
After selecting the front face, getting the Follow Me tool and clicking on the profile face, I ended up with this:
Then I made it a component.
I didn’t follow the bit about the rails and stiles. Where are they supposed to be? Are you really planning frame and panel drawer fronts? That’s different than just a raised panel drawer front.
As for getting rid of the lines, those are softened edges. You can make them not show by deselecting Hidden Geometry in the View menu.
Did you want that piece under the top to have a cove on the front, too? Or only on the sides. will that really be a molding wrapped around the case?