Built-in “Multiply Vector 4 by Float” Niagara function fails map validation

General Issues and Bug Reporting
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Summary

Any Niagara system or emitter that uses “Multiply Vector 4 by Float” (built-in Unreal function) fails UEFN map validation.
(This is very similar to Built-in "Multiply Linear Color by Float" Niagara function fails map validation, but different function)

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Other

Steps to Reproduce

  1. Create Niagara System using standard Fountain
  2. Set Particle Color in “Initialize Particle” to “Make Linear Color from Float 4”, and set Float 4 to “Multiply Vector 4 by Float” (any values)
  3. Drop the Niagara system into the map (anywhere)
  4. Try to Launch Session

Expected Result

Session launches, as this is a built-in, safe function.

Observed Result

Validation fails.

Found disallowed object type /Niagara/DynamicInputs/Multiply/Multiply_Vector4_ByFloat.Multiply_Vector4_ByFloat, Referenced by:See below for asset list, Plugin mount point:/Spaceship20.
/Spaceship20/Ship/TransportationBay/FXS_PlayerTransport
/Spaceship20/Ship/TransportationBay/FXS_TransporterActive

Platform(s)

Windows 11

Additional Notes

There are several workarounds, but I am already trying this function as a workaround to Built-in "Multiply Linear Color by Float" Niagara function fails map validation, so it leads to workaround-for-workaround.