I have one object in a drawing (using Autocad LT 2021 for mac) that was originally created in a Structure layer. I copied it to a second drawing, changed the layer to 0 and it worked fine. When I turned off the 0 layer it disappeared. When I copied the object to a third drawing from the second drawing, I am trying to change its layer (to Accessories). The property manager shows it changes to the Accessories layer but it doesn't disappear when I turn the Accessories layer off. It only disappears when I turn off the Structure layer (that it was originally drawn in). Is there a way to fix this without having to redraw the object?