Description

Spawn system attached with a system where bAutorDestroy is true and one data interface is invalid will crash the engine.

Steps to Reproduce
  1. Use the spawn system attached blueprint node to spawn a Niagara system
  2. setup the system to have an invalid data interface, and mark it for auto destroy (bAutoDestroy)

Result

The engine will crash with this error: "Failed to route OnRegister"

Have Comments or More Details?

There's no existing public thread on this issue, so head over toAnswerHub just mention UE-74057 in the post.

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Unresolved
ComponentRendering - Niagara
Affects Versions4.22
Target Fix4.26
CreatedMay 1, 2019
UpdatedFeb 11, 2020