The default value of a variable promoted to a variable is always 0

Steps to reproduce the bug ** :
1, Promoted to a variable from any note
2, Modify the default values
3, Compile , Watch this value
4, Play the game
Problem: Default Value have been set. But [Watch this value] display Vector 0,0,0; Float 0,0000; or None

This problem has come up many times, but I’m not sure about the reproducible conditions