Texture Color in UMG reverts to default value after Sequence is over

After the timeline exceeds the sequence, the Material on the image reverts to default Red. This does not happen to the color on the font however.

This does Not happen in Main and in 4.16.1 therefore it is a Regression

1. Open QAGame
2. Search and Open Test-Animation BP UMG
3. Select the + Animation to add a new animation to the widget
4. Select the + Add to add UIMaterialTest to the Sequence
5. Select the + to add a new track to UIMaterialTest
6. Select Brush > Color
7. Add a new KeyFrame in Color and Opacity
8. Drag the timeline out to 1 and change the color to Red 0 and Green 1
9. Drag the timeline past 1

Result: The color of the UIMaterialTest turns back to Red

Expected Result: The color remains the same after the sequence ends since the value of the Material has been changed.