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Cant Duplicate (Ctrl w)/Copy Paste any node in Materials Editor

When I create a node (any node) and try to Ctrl+w or copy paste, nothing seems to happen. I do not get a copy of that node but when I Ctrl+z, the display in the lower right corner say "undo: Material Editor: Paste". I am using a PC. Any help would be greatly appreciated.

Using Unreal Engine 4.4.3

Product Version: Not Selected
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asked Oct 31 '14 at 04:09 AM in Using UE4

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avatar image AndrewHurley Nov 03 '14 at 07:49 PM

Hey brad1100,

I have had this happen to me as well, and it was because I was not completely inside of the Material Editor itself. Make sure your active panel is the Material Editor and the last click was on the node you wish to copy.

Try this and if you are still experiencing your issue please let us know and we will investigate further!


Andrew Hurley

avatar image brad1100 Nov 05 '14 at 09:07 PM

Sorry for late reply (working and finishing CS degree). So I tried that with no luck. Here is what I did: 1) Clicked on Material Editor Tab (also tried clicking on grid) 2) Clicked on the node 3) Clicked Ctrl+w (screen flashed but no new node was created) 4) Clicked Ctrl+z (displayed "Undo: Material Editor: Paste") 5) Clicked Ctrl+c (while node was highlighted) 6) Clicked Ctrl+v (nothing happened, not even a screen flash)

Any other suggestions would be well appreciated. Tried on two versions: 4.4.3 & 4.5.1

avatar image IronTaxi Jul 19 '15 at 01:16 PM

Having a very similar issue. Started in BLueprint editor in 4.7 couldnt copy/paste but now in main editor window as well .

I should be very specific.. I can copy/paste but the result is an empty object with the copied mesh no attached.

avatar image AndrewHurley Jul 20 '15 at 03:26 PM

Hey IronTaxi,

Your issue seems to be related, but I need some further information and clarification as to where exactly you are copying and pasting to and from?

If you could provide me with some simple steps to reproduce the issue you are experiencing in a new blank project we can begin finding the appropriate solution.


Andrew Hurley

avatar image DLROKen Sep 11 '18 at 10:35 AM

Mine works fine in old versions of the Engine, but all of a sudden it doesn't work in 4.20...

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It works for me on a variety of versions of ue4. And it should work.

You could go to "Advanced settings > editor preferences > Keyboard shortcuts > Common Commands" and see if the controls are set properly, if not press "Reset to defaults" or edit them manually.

Keep in mind, the copy can skip a bit to the right when "Ctrl + w" is pressed, or when you "Paste" it might be close from where your last mouseclick was.

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answered Nov 01 '14 at 02:16 AM

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avatar image brad1100 Nov 05 '14 at 08:34 PM

Tried that (unchecked and rechecked boxes) still no luck.

avatar image Luos Nov 05 '14 at 10:47 PM

Hmm.. I know its a bit "out there" but.. a reinstall maybe?

avatar image brad1100 Nov 10 '14 at 11:20 PM

tried that, did not work :(

avatar image AndrewHurley Nov 07 '14 at 04:11 PM

Are you using a source build from GitHub or are you running the engine from binary i.e. the Launcher?

avatar image brad1100 Nov 10 '14 at 11:21 PM

I am running the engine from binary.

avatar image AndrewHurley Nov 11 '14 at 04:08 PM

Would you mind sending a copy of your dxdiag?

Also are you working on a laptop or a desktop machine?

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