Niagara Map Set parameters are improperly named

Parameters are misnamed when adding a new parameter to Map Set in a Niagara Module Script 

Tested: 4.23.1, 4.24.3 , 4.25 preview, 4.26 (main)

1. Create a new Niagara Module Script
2. Add a Particles.Scale parameter 
3. Drag and drop the new parameter into "Map Set" 

Result: The new parameter name is "None"

Expected: The name to in the Map Set to reflect the name of the variable