Material editor crash

Development World Creation
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1

I am experiencing a rocket crash while using the material editor when attempting to delete an old custom material function after adding a LandscapeLayerBlend expression AND adding 2 layers. I expect that deleting any node might cause this, but at the time, my very basic starter material only contained custom functions. I can successfully delete the LLB expression and not crash the client.

If I delete the LLB node, I can delete the other custom functions without crashing my client as well. I’ve included screenies of my work pre and post crash.

If I don’t add the two new layers, I can delete my old functions and not crash the client.

So quick order of operations for me was:
Add new landscapelayerblend expression, add two layers to the LLB, attempt delete of custom function.

Also, attempting to save the material after adding the LLB causes the client to crash.

2

Hello,

There is a known issue with the use of the LandscapeLayerBlend node which causes a crash. This issue has already been fixed internally and is not expected to occur in the next Rocket release.

https://rocket.unrealengine.com/questions/13867/bug-landscape-layer-blend-material-function-crashe.html
https://rocket.unrealengine.com/questions/13229/bugbeta-6-landscape-node-blend-cause-crash-of-edit.html
https://rocket.unrealengine.com/questions/13211/bug-landscapelayerblend-is-broken-not-working-cras.html
https://rocket.unrealengine.com/questions/15100/question-landscape-layer-blend-node-crash-when-is.html

(I have made this post Public since it does not appear to contain any confidential information)

Cheers

3

Thanks! Glad to hear it.

Do we have a sense of when the next update will be?

We have a big demo coming up in the second week of March so we’re hoping we can get the fix well before then.

4

We do not expect to have an updated release prior to the GDC in March.

There is a workaround you may wish to consider where you can run the Rocket editor with the old version of the Material Editor. To do this, launch the RocketEditor.exe with the command line argument -oldme. The LandscapeLayerBlend node does not crash in this case.

Cheers