# Copy/Pasting material expession graph renames nodes

**URL:** <https://forums.unrealengine.com/t/copy-pasting-material-expession-graph-renames-nodes/388498>\
**Category:** Rendering\
**Tags:** UE4-15, unreal-engine, question\
**Created:** [March 20, 2017, 10:58pm UTC](https://forums.unrealengine.com/t/copy-pasting-material-expession-graph-renames-nodes/388498 "2017-03-20T22:58:22Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![LeFxGuy](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LeFxGuy](https://forums.unrealengine.com/u/LeFxGuy)\
**Post date:** [March 20, 2017, 10:58pm UTC](https://forums.unrealengine.com/t/copy-pasting-material-expession-graph-renames-nodes/388498/1 "2017-03-20T22:58:22Z")

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While doing the _Creating a Fluid surface with Blueprints and Render Targets_ tutorial, i came across a regression/bug/different behaviour in 4.15 compared to engine version 4.14 and 4.13

The tutorial allows you to copy/paste material expression graphs and pasting the _HeightSim_-material in version 4.15 renames the texture parameters. See attached pictures.

 ![130974-paste_4.13_4.14.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/3/c/63c42eca0215ece872ad21d70752d65ce65ee614.jpeg)

 ![130975-paste_4.15.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/f/6/9f699f107147182ffb94c1dfe65c3f7aac61ad11.jpeg)

This breaks the tutorial and I am not sure if this is intended behaviour. If this is intended, there should be a note for the tutorial to manually rename those affected nodes for [this tutorial][3] when using engine verison 4.15

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**Author:** ![LeFxGuy](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LeFxGuy](https://forums.unrealengine.com/u/LeFxGuy)\
**Post date:** [April 6, 2017, 1:54pm UTC](https://forums.unrealengine.com/t/copy-pasting-material-expession-graph-renames-nodes/388498/2 "2017-04-06T13:54:20Z")

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bump bump bump

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**Author:** ![anonymous\_user\_2272e678](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2272e678](https://forums.unrealengine.com/u/anonymous_user_2272e678)\
**Post date:** [April 6, 2017, 2:52pm UTC](https://forums.unrealengine.com/t/copy-pasting-material-expession-graph-renames-nodes/388498/3 "2017-04-06T14:52:55Z")

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Hi ,

Just to let you know there is a JIRA for tracking this, UE-43159, although I’m not sure what the targeted release date is just yet. We’ve seen this internally too so I’ve requested the priority get bumped if possible.

EDIT: Looks like this is going to come through in 4.16.

Thanks,

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**Author:** ![LeFxGuy](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LeFxGuy](https://forums.unrealengine.com/u/LeFxGuy)\
**Post date:** [April 6, 2017, 3:28pm UTC](https://forums.unrealengine.com/t/copy-pasting-material-expession-graph-renames-nodes/388498/4 "2017-04-06T15:28:25Z")

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, I can’t find the issue number in the issue tracker, is this a bug or is it invisble? But thanks for letting me know 🙂

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**Author:** ![anonymous\_user\_2272e678](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2272e678](https://forums.unrealengine.com/u/anonymous_user_2272e678)\
**Post date:** [April 6, 2017, 3:34pm UTC](https://forums.unrealengine.com/t/copy-pasting-material-expession-graph-renames-nodes/388498/5 "2017-04-06T15:34:03Z")

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No problem. I requested it be made public but it can take a while to appear sometimes, it should be there on the tracker once it does.