The produceable project is attached, download and unzip 338132-ue422-0516.zip[Image Removed]
Open the project and map Def.umap
Select the Sequencer actor in the level named Scene_1_0001
Play it, see the Light color attritutes is keyframed and changing constantly, but it doesn't update the viewport
Render sequences or video also doesn't have the color changes
Expect: The color of light keyframed should changing in viewport and output sequences frames
PS: Those lighting tracks were recorded by using maya livelink record. Any new light actor color tracks added into these Sequencers also doesn't update their colors in viewport.
If I create a complete new Sequencer and add new light and its color track, everything works as expected
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-75334 in the post.