Description

When a particle system has a ribbon trail it will not render when viewed in a packaged game.

Attached sample asset from Content Examples with Ribbon Trail.

This issue did not occur in 4.10.4, but is no longer working properly in 4.11.

Tested in:
4.10.4 - CL-2872498
4.11.0 - CL-2927265
Attempted to packaged with multiple versions of 4.12 with all producing a build failed error. Last CL tested was 4.12 Dev-Platform - CL-2931152

Steps to Reproduce

1. Open UE4
2. Copy the attached zip file contents to your Content Folder in your project
3. Place a couple of these in the level.
4. Package the game for Development or Shipping
5.

Regression: Yes

Results: Particle Ribbon trails are non-existent for the particle

Expected: ribbon trail will be visible for the particle system.

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Cannot Reproduce
ComponentUE - Graphics Features
Affects Versions4.11.0
Target Fix4.12
Fix Commit2953213
Main Commit2967480
CreatedApr 5, 2016
ResolvedApr 22, 2016
UpdatedApr 27, 2018