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Fixed in 1.0.0

Votes

3

Found in [Package]

1.0.0

Issue ID

1375087

Regression

No

[Quest][XR] Dragging a ScrollRect makes it disappear and set NaN values

Package: UGUI

-

Reproduction steps:
1. Open the attached user's project "VR.zip"
2. Build for Quest 1/2
3. Use the controller to grab, move and let loose in quick succession

Expected result: Dragging a ScrollRect does not make it disappear and set NaN values
Actual result: Dragging a ScrollRect makes it disappear and set NaN values (see attached Repro.mp4)

Reproduces on: XR IT 1.0.0-pre.2 - 2.0.0-pre.5 (2020.3.24f1, 2021.2.5f1, 2022.1, 2022.2.0b1)
Could not test below XR IT 1.0.0-pre.2 due to errors in the console

Notes:
-Issue does not reproduce in the Editor (with oculus link)

  1. Resolution Note (fix version 1.0.0):

    We discovered a frame timing issue on Oculus Quest builds that causes the unscaledDeltaTime value to get set to 0, cascading to the ScrollRect component which uses that value for a velocity calculation, resulting in an invalid number. A fix has been applied in both places to prevent future issues.

  2. Resolution Note (fix version 1.0.0):

    We discovered a frame timing issue on Oculus Quest builds that causes the unscaledDeltaTime value to get set to 0, cascading to the ScrollRect component which uses that value for a velocity calculation, resulting in an invalid number. A fix has been applied in both places to prevent future issues.

  3. Resolution Note (fix version 1.0.0):

    Fixed in: 2021.3.2f1

  4. Resolution Note (fix version 1.0.0):

    We discovered a frame timing issue on Oculus Quest builds that causes the unscaledDeltaTime value to get set to 0, cascading to the ScrollRect component which uses that value for a velocity calculation, resulting in an invalid number. A fix has been applied in both places to prevent future issues.

Comments (2)

  1. rdmont

    Apr 01, 2022 09:42

    Seeing this in Unity 2021.2.17f1, with XR IT 2.0.1.

  2. intexteel

    Feb 25, 2022 18:48

    Seeing this in Unity 2021.2.10f1.
    Upgrading XR IT to latest version seemed to have improved it initially, but then other panels broke anyway.

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