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Copy/Pasting material expession graph renames nodes

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.

Expected DifferentResult_4_15

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 when using engine verison 4.15

Product Version: UE 4.15
paste_4.13_4.14.jpg (202.0 kB)
paste_4.15.jpg (195.7 kB)
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asked Mar 20 '17 at 10:58 PM in Bug Reports

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avatar image LeFxGuy Apr 06 '17 at 01:54 PM

bump bump bump

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Hi LeFxGuy,

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, Chris

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answered Apr 06 '17 at 02:52 PM

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Chris.Bunner STAFF
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avatar image LeFxGuy Apr 06 '17 at 03:28 PM

Chris, 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 :)

avatar image Chris.Bunner STAFF Apr 06 '17 at 03:34 PM

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.

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