Description

Error on some Niagara emitters using the WindForce module:

LogNiagaraEditor: Error: Invalid input type found while attempting initialize new rapid iteration parameters. Function Node: /Game/FX/Explosions/NS_EmpBlock.NS_EmpBlock:LingeringElectricyComponent001_1.NiagaraScriptSource_1.NiagaraGraph_0.NiagaraNodeFunctionCall_9 WindForce Input Name: Module.Physics Field

LogNiagaraEditor: Error: Invalid input type found while attempting initialize new rapid iteration parameters. Function Node: /Game/FX/Explosions/NS_FragV2.NS_FragV2:HangingParticulates.NiagaraScriptSource_0.NiagaraGraph_0.NiagaraNodeFunctionCall_9 WindForce Input Name: Module.Physics Field

The type is not visible and the module needs to be deactivated for the emitter to work.

Potentially related to the ChaosNiagara module.

Requires a manual resave of all packages using the WindForce module. 

NEW INFO One of the cases specifies that it only happens on a project that was ported from 4.27->5.0->5.1->5.2->5.3->5.4->5.5; they can't repro it on projects that were made on 5.3 and upgraded later (at least for the moment); they think this started being an issue on 5.2 but aren't 100% sure.

Steps to Reproduce
  1. Use Wind Force in Niagara Modules.
  2. Package
  3. Sometimes this error will pop out.

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Backlogged
ComponentUE - Niagara
Affects Versions5.25.5
Target Fix5.7
CreatedOct 6, 2023
UpdatedJun 6, 2025
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