Parameters Pane shows different Variable Name then MapGet or MapSet

Variable names aren't displayed in MAPGET and MAPSET the same way as they are in the Parameters Pane. This is a regression from 4.24.3 (CL-11590370).

This issue was reported and tested in 4.25 Preview 2 (CL-12055273). This was reproduced in Main 4.26 (CL-12063615).

1. Open the UE4 Editor and create a Blank project
2. Create a Niagara Module script
3. In the Parameters Pane under Engine click "+" and select Engine.Owner.Position
4. Bring that to MapGet
5. MapGet omits the variable name and displays "Custom None"
6. Hover over the variable and the tool tip will show the full correct name

Results: Previous Versions of Niagara allowed you to see the full variable name with nothing omitted.

Expected: The full variable name to appear