Editor crash when adding mesh renderer elements in Niagara

Development Rendering
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1

Steps to reproduce:

  1. Create a new Niagara System
  2. Add a Mesh Renderer module in the Emitter’s Render group
  3. Inside the Mesh Renderer module, navigate to Mesh Rendering/Meshes and add a new mesh array element

Previous Niagara FX with multiple mesh work, but changing the Meshes array crashes the editor.

2

Steps to Reproduce
Hello, starting with 5.6 we get the following crash when adding meshes array elements inside the Mesh Render module in Niagara:

Assertion failed: Widgets.Num() == TooltipWidgets.Num() [File:\Engine\Plugins\FX\Niagara\Source\NiagaraEditorWidgets\Private\SNiagaraOverviewStackNode.cpp] [Line: 718]

Thank you,

Mihai

3

Hello,

Thank you for reaching out.

I’ve been assigned this issue, and we will be looking into this check() for you.

4

Hello,

Thank you for reporting this. I can confirm this issue can be reproduced as described in the latest CL, and have opened a bug report:

https://issues.unrealengine.com/issue/UE-302294

The tracker will be visible after it is approved internally at Epic Games and is publicly accessible.

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