The Debug Focus Plane in the CineCameraActor does not appropriately respond to mouse input and position when the Manual Focus Distance is set using the eye-dropper.
Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7043647), 4.23 (CL - 8386587), 4.24 (CL - 9630502), 4.25 (CL - 9630501)
1. Download the attached project
2. Select the CineCameraActor1 actor in the World Outliner
3. Under Focus Settings in the Details Panel, enable Draw Debug Focus Plane
3. Click the eye dropper icon next to Manual Focus Distance and select anywhere in the scene that is in front of the Cine Camera Actor
Expected: The Debug Focus Plane would move to the selected area
Result: The plane occasionally ignores input
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-82034 in the post.