Description

When "Sequencer.ThreadedEvaluation.AllocationThreshold 8" is initiated, characters in a level sequence that have “Swap Root Bone Actor” activated on their animation will begin to slide very fast across the screen in the delta direction that the root is translating and or rotating.

By setting the animation in the Sequencer to “Swap Root Bone None” the animation will return to working as expected.

Steps to Reproduce

1. Download the attached test project and open
2. Open the level sequence "/Game/TestLevelSeq" in the level
3. Play the cinematic
4. Observe that character nearest the camera, "Player Char", stays pretty much in the same location
5. Run the console command: "Sequencer.ThreadedEvaluation.AllocationThreshold 8"
6. Repeat step 3
7. Observe that the character nearest the camera, "Player Char", slides significantly, often jumping back to the same location

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Fixed
ComponentUE - Anim - Sequencer - Anim in Engine
Affects Versions5.45.4.3
Target Fix5.5
Fix Commit35021382
CreatedJul 19, 2024
ResolvedJul 23, 2024
UpdatedJul 30, 2024
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