For practice I am trying to model an object and need to duplicate and move a face (similar to the way it's done in blender guru's doughnut tutorial for the icing).

So I marked the faces I want to duplicate: enter image description here

...used shift + D and then moved the duplicated face: enter image description here

...and then used P and "selection" to make its own object out of it: enter image description here

However, as you can see in the last image, the separation somehow fails. Its marked in red and I cannot do any transformation or so to the new object.

Does anybody know what's wrong here? Thanks in advance!

  • $\begingroup$ did you release the object after shift D or right clik? $\endgroup$ Feb 16, 2021 at 16:35
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    $\begingroup$ Once separated. Go back to object mode, unselect everything (click in a large empty space) then re-select the object you want to modify. $\endgroup$ Feb 16, 2021 at 16:35
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    $\begingroup$ "However, as you can see in the last image, the separation somehow fails." The last image shows two cylinder objects in the outliner, which specifically indicates the opposite $\endgroup$ Feb 16, 2021 at 16:35
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    $\begingroup$ After you separate (P), be sure to exit Edit mode on Cylinder. Otherwise you won't be able to select anything in Cylinder.001. So 1) Separate; 2) exit Edit mode; 3) select Cylinder.001; 4) enter Edit mode on that selected object; 5) make sub-object edits. Forgetting to exit Edit mode is the bane of my existence! $\endgroup$
    – james_t
    Feb 16, 2021 at 17:14
  • $\begingroup$ James and Christopher, thanks! That solved it!! $\endgroup$
    – Raku
    Feb 16, 2021 at 17:40

1 Answer 1


As @james-t and @Christopher-Bannett wrote in the comments, edit mode needs to be exited first and then re-entered under the new object.

Thanks guys!!


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