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Won't Fix

Votes

0

Found in

2017.4.0f1

2017.4.7f1

2018.3.0a1

2019.1.0a1

2019.2.0a1

Issue ID

1143420

Regression

No

Mesh is completely deformed when playing skeletal animations on a GameObject after modifying the associated anim and model FBX

Animation

-

How to reproduce:
1. Open the attached project "case_1143420-TimelineAnimationIssueStripped_2" and scene "Test"
2. Select the "ParentWithTimeline" GameObject to view its Timeline
3. Hit the Play button in the Timeline Window and observe the Scene View

Expected result: a fighting animation is played on the GameObject linked to by the animation track
Actual result: the character's model is mangled when playing the animation (looks like a bone mismatch or a skinning issue)

Reproducible with: 2017.4.26f1, 2018.3.13f1, 2019.1.0f2, 2019.2.0a12

Note: the GameObject with the Animator referenced by the animation track has a hierarchy from a previous version of the animation's FBX file. Creating a new instance of the played animation's FBX asset in the Scene and referencing it from the Timeline plays the animation correctly. However, both the old and the new GameObjects reference the same model and avatar and only have a slightly different Transform hierarchy (the bulk of the bones going from the root seem to have identical positions and paths in the bone hierarchy)

  1. Response avatar

    Resolution Note:

    The animation system does not support mixing model and animation from different transform hierarchies.

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