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.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-197313 in the post.
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Component | UE - Niagara |
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Affects Versions | 5.2, 5.5 |
Target Fix | 5.7 |
Created | Oct 6, 2023 |
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Updated | Jun 6, 2025 |