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Votes
0
Found in
2018.4
2019.4
2020.3
2020.3.2f1
2021.1
2021.2
Issue ID
1329714
Regression
No
[Physics] Character Joint jumps around when following Kinetic Rigidbody
Reproduction steps:
1. Open attached project "PhysicsTest.zip" and scene "TestScene"
2. Enter Play Mode
3. In Hierarchy window, select "Point" GameObject
4. In Scene view, move the "Point" GameObject around using the mouse
5. In Scene view, observe "Cube" GameObject movement
Expected result: The connected Character Joint follows the Kinetic Rigidbody in a normal way
Actual result: The connected Character Joint keeps changing positions very fast
Reproducible with: 2018.4.34f1, 2019.4.24f1, 2020.3.5f1, 2021.1.4f1, 2021.2.0a14
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Resolution Note:
The broken body state comes straight from PhysX and we just apply the transform changes. There is a property that allows to circumvent this bug entirely called "CharacterJoint.enableProjection" https://docs.unity3d.com/ScriptReference/CharacterJoint-enableProjection.html