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Not Reproducible

Votes

7

Found in

2021.3.30f1

2022.3.18f1

2023.2.7f1

6000.0.29f1

6000.1.0a6

Issue ID

UUM-67528

Regression

No

Input stutters in Android player built with Unity 2021 and newer

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NOTES:
- Was asked to process the ticket as is without a local reproduction [https://unity.slack.com/archives/C09Q7LYP9/p1709907313499649|https://unity.slack.com/archives/C09Q7LYP9/p1709907313499649|smart-link]
- Affected versions are from the user's tests

Repository with a test project and tests results: [https://gitlab.com/CncealDVRflectN/unity-input-test/-/tree/v2/Results/V2?ref_type=heads|https://gitlab.com/CncealDVRflectN/unity-input-test/-/tree/v2/Results/V2?ref_type=heads]
Forum thread with a test description and findings: [https://forum.unity.com/threads/input-stutters-android.1486386/|https://forum.unity.com/threads/input-stutters-android.1486386/]

1. Build the project (or any other with swipe gestures) with Unity 2021 or newer. Or use a prebuilt apk from the repo
2. Launch the app
3. Observe periodic stutters while scrolling
4. Build the project with Unity 2020. Or use a prebuilt apk from the repo
5. Launch the app
6. Observe less stutters

Platform: Android
Observed on: Samsung Galaxy S22, Samsung Galaxy S10, Samsung Galaxy A70, Samsung Galaxy A52, Huawei P9 Smart (2019), Samsung Galaxy Tab A7

  1. Resolution Note:

    We were not able to reproduce this issue using automated and manual methods. Input handling times were the same across all versions and we could not notice any degradation using sanitised inputs (python script, scrcpy, mouse event record and playback). Please see the thread for a more detailed explanation: https://discussions.unity.com/t/input-stutters-android/927902

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Comments (3)

  1. paulraubic

    Oct 22, 2024 19:17

    This is caused by UUM-10244. I noticed it when migrating from Unity version 2021.3.19 to 2021.3.20. It's very noticeable and I was holding off from upgrading Unity but now, Google Play Store strictly requires Android API version 34+ which can only be built with higher Unity version (because it requires gradle version 7.2+ which requires Java 11). So I am updating my games now (a week before Google Play Store deadline) and they will unfortunately be choppy leading to high loss of revenue.

  2. Starburst999

    Jul 31, 2024 01:03

    It's also very noticeable on ScrollRect where it will stutter while draging but be super smooth once release...

  3. Peter77

    Apr 11, 2024 16:35

    Related forum thread:
    https://forum.unity.com/threads/input-stutters-android.1486386/

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