Color obtained in Retainer Box differs from color visible in material preview when set by Vector Parameter

Color set by Vector Parameters in a material differs in preview from color obtained in retainer box. Obtained color does not match either sRGB or Linear values of color visible in material preview.
 
Found in 4.21 CL# 4753647, 4.22 CL# 7023642, 4.23 Preview 5 CL# 7838574, and 4.24 CL# 7949831

1. Open attached project
2. Load the "NewWorld" level
3. Play in Editor

Results:
Widget image has a different color that the material preview

Expected:
Widget image would match the material 

I am not able to find world outliner how to enable it?

How can i modify the param name in EQS node

How to achieve HLSL Multiple Render Target in Material blueprints?

Behaviour Cast to Fail

Does the pivot parameter setting in the actor's userinterface property relate to the Widget's anchor layout?

Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows

How to properly terminate the DoWork thread function in FAsyncTask?

Bonjour j'ai un petit problème c'est que je ne vois plus l'onglet "scability" pour changer les graphismes de uefn et j'ai pas trouvé l'option pour le faire revenir ?

What method is used to fill polygonal regions when drawing spline mesh at run time?

Error UE5 5.0.3