Search Issue Tracker

Fixed in 2022.1.X

Fixed in 2021.2.X



Found in




Issue ID




[Mobile] Transitions get stuck when the touch that activated the transition is swiped off of the object

UI Toolkit


Reproduction steps:
1. Download attached project "UIToolkit Bug"
2. Build and Run the Scene "SampleScene" to a mobile device
3. In the Build, tap the hexagonal Button on the left side and keep the finger on it
4. Swipe the finger away from the Button and release it

Expected result: The Button shrinks once the finger is no longer on it
Actual result: The Button does not shrink

Reproducible with: 2021.2.0b9, 2022.1.0a6
Could not test with: 2019.4.30f1 (UI Toolkit not available), 1.0.0-preview.16 (2020.3.17f1, 2021.1.19f1; project's UI breaks upon downgrading to a package based UI Toolkit version)

Reproduced with:
iPhone 6 (iOS 12.4.8)
iPhone 7 (iOS 12.3.1)
iPhone 12 Mini (iOS 14.1)
N/A, Samsung Galaxy S9 (SM-G960F), Android 8.0.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00002, Samsung S5 Neo LTE (SM-G903F), Android 6.0.1, CPU: Exynos 7 Octa 7580, GPU: Mali-T720
VLNQA00318, Oneplus 7Pro (GM1913), Android 10, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00231, Huawei HUAWEI Mate 20 Pro (LYA-L29), Android 9, CPU: HiSilicon Kirin 980, GPU: Mali-G76

- Tapping the button without swiping the finger off will show the desired transition
- Clicking near the Button sometimes makes it shrink again
- Clicking on a different Element always shrinks it

  1. Resolution Note (fix version 2022.1):

    Fixed in 2022.1.0a12

  2. Resolution Note (fix version 2021.2):

    Fixed in 2021.2.16f1

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.