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
Widget image has a different color that the material preview
Widget image would match the material
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-78716 in the post.