When a world space widget has their blend mode set to transparent they look blurry in motion. The effect is more pronounced when the camera rotates instead of when it is translated.
Found in 4.24.2 CL#11100242
Reproduced in 4.23.1 CL#9631420, 4.26 Main CL#11574810
1. Create third person template project.
2. Create a widget (DemoWidget) and set it up like the attached image.
3. Add a world space widget to the ThirdPersonCharacter in a place that will be easy to see while playing. Assign it a demo widget.
4. Set the blend of the world space widget to Transparent.
5. Play the default scene.
Expected: The widget blurs when the camera moves.
Result: The widget doesn't blur.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-89388 in the post.