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Regarding the thumbnail error in Niagara that occurs during validation at the time of pushing.

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Reference ID

4f57477a-4644-1fd9-bc9e-d0a6b38722f5

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Assets

Summary

When placing a Niagara asset inheriting a specific Emitter onto a level, the following error occurs during validation at the time of pushing:

Texture2D /Engine/Transient.NewNiagaraSystem1:NewNiagaraEmitter11.ThumbnailTexture contains no miplevels! This could happen if this texture is a thumbnail and hasn’t been generated (Format: 0)
Texture2D /Engine/Transient.NewNiagaraSystem1:NewNiagaraEmitter11.NewNiagaraEmitter11.ThumbnailTexture contains no miplevels! This could happen if this texture is a thumbnail and hasn’t been generated (Format: 0)

The affected Emitters are included within the Template:

  • DynamicBeam
  • SingleLoopingParticle
  • StaticBeam
    Additionally, for Learning Content, inheriting “Grid Location” results in the mentioned error.

Steps to Reproduce

Here are the steps:

1, Create a Niagara System inheriting DynamicBeam.
2, Place the corresponding Niagara System on the level.
3, Push Push Changes or Start Session of button.
4, Encounter the mentioned error.

Expected Result

We expect a situation where no error occurs regarding the texture thumbnail, regardless of which Emitter is inherited.

Observed Result

As of version 29.00, I recall that this error did not occur. There’s a possibility that it might have occurred before version 29.00 due to my faulty memory, but at the very least, it seems that this error started occurring recently.

Platform(s)

windows

Island Code

N/A

2 posts - 2 participants

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