When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties.

Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollection to begin with.

Steps to Reproduce

1. Create a NiagaraParameterCollection.
2. Add MaterialInterface.
3. The item to set Material does not appear.

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ComponentRendering - Niagara
Affects Versions4.26.2
Target Fix5.0
CreatedApr 16, 2021
UpdatedMay 5, 2021