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Fixed in 2020.2.X
Fixed in 2019.4.X, 2020.1.X
Votes
4
Found in
2019.2.0a7
2019.3
2019.3.15f1
2019.4
2020.1
2020.2
Issue ID
1251897
Regression
Yes
A fabric with a Cloth component bounces up and down when the project has other heavy tasks running
How to reproduce:
1. Open the attached "1251897 repro" project
2. Open the "SampleScene" from the Assets folder
3. Enter Play Mode
Expected results: the flag hangs from the pole without jittering
Actual result: the flag bounces up and down upon entering Play Mode and continues to move up and down every couple of second afterward
Reproducible with: 2019.2.0a7, 2019.3.16f1, 2019.4.0f1, 2020.1.0b11, 2020.2.0a13
Not reproducible: 2018.4.23f1, 2019.2.0a6
Notes:
-This usually reproduces when Unity is under some load but can also reproduce in a completely empty Scene (perhaps due to background tasks and other programs)
-Due to abovementioned reason, the most noticeable bounce is upon entering Play Modes as the Scene is getting initialized
-This is also reproducible in a built game if enough load is present.
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Resolution Note (fix version 2020.2):
Fixed in 2020.2.0a16
Resolution Note (fix version 2020.1):
Fixed in 2020.1.0b14
Resolution Note (fix version 2019.4):
Fixed in 2019.4.2f1