The Text outline and drop shadow outline for the text do not match up when using a material for the text outline appearance. The "outline color" setting will need to be set to white for the material to show up correctly around the text. This will then cause the shadow outline color to become white.
Result: The outline color for the text and the Shadow do not match.
Expected: There would be a way to have the shadow outline opt in to use the material that is being used for the text outline
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-57646 in the post.