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Won't Fix
Votes
4
Found in
2018.3.0a5
2018.4.0f1
2019.1.0a1
2019.2.0a1
2019.3.0a1
Issue ID
1159173
Regression
Yes
Sleeping rigidbody does not wake up after collision with another overlapping rigidbody's collider
How to reproduce:
1. Open attached project "PhysicsSleepBug.zip" and scene "Scene"
2. Enter Play mode
3. Observe the red car
Expected result: due to two cars bumping into each other, the red car rigidbody should be woken up
Actual result: the car is stuck in rigidbody sleep mode, until the "Near body" car hits the ground
Reproducible with: 2018.3.0a5, 2018.3.14f1, 2018.4.1f1, 2019.1.5f1, 2019.2.0b5, 2019.3.0a5
Not reproducible with: 2017.4.28f1, 2018.3.0a4
Solution: The issue will go away if you scale fixedDeltaTime accordingly
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Resolution Note:
The issue stems from fixedDeltaTime not being scaled accordingly to timeScale as recommended in the TimeScale documentation, therefore we decided to close this case as won't fix