Color and Opacity animation option does not play for Button component

Color and Opacity animation option does not play for Button component, this occurs both in the Widget editor and during play. This issue is not a regression

Versions Tested:
4.16.3 - CL: 3561208 - Issue does not occur
4.17.1 - CL: 3586342 - Issue occurs
4.18 - CL: 3597901 - Issue occurs

1. Create a new project (No template or starter content needed)
2. Create a new widget blueprint > Name it "Test_BP" > OPen Test_BP
3. Add a new button component to the canvas panel
4. Add a new animation
5. Select the new animation and add the button to the timeline
6. Add a color and opacity track to the timeline
7. on the timeline at 1 second, set the opacity value to 0
8. Press the play button on the timeline
   Result: The animation does not affect the button
   Expected Result: The animation affects the button

Fix UE-51650

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