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Fixed in Unity 2018.1



Found in


Issue ID




[Android] VideoPlayer stuttering and dropping frames




Priority: 3Not yet prioritized for a release


Severity: 3Secondary functionality broken

How to reproduce:
1. Open stripped project from OC
2. Deploy app to device
3. Click 'Breathing'
4. Click 'What are the benefits?'
5. Click on the video 'play' icon
-- Observe abysmal video performance

Reproduced on: 5.6.2f1, 5.6.2p4, 2017.1.0p1, 2017.2.0b4, 2017.3.0a1

Issue cause: Multithreaded Rendering, with Multithreaded Rendering disabled video plays smoothly.

Devices under testing:
Samsung SM G900F (Galaxy S5)*, OS:6.0.1, CPU:armeabi-v7a, GPU:Adreno (TM) 330, Build:samsung/kltexx/klte:6.0.1/MMB29M/G900FXXS1CQC1:user/release-keys
Samsung SM G950U*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 540, Build:samsung/dreamqltesq/dreamqltesq:7.0/NRD90M/G950USQU1AQC8:user/release-keys
Verizon SM G930V*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:Verizon/heroqltevzw/heroqltevzw:7.0/NRD90M/G930VVRU4BQC5:user/release-keys
Xiaomi MI NOTE Pro*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 430, Build:Xiaomi/leo/leo:7.0/NRD90M/7.7.13:user/release-keys

Fixed in: 5.6.4p3, 2017.1.2p3, 2017.2.0p3, 2017.3.0b9, 2018.1.0a2

Response avatar


Aug 25, 2017

Our developer has identified the issue is caused by Multithreaded Rendering option enabled. Disabling it may be a workaround for you until we get a proper fix.

Comments (43)

  1. 68be4a808072db7ce845ed8116b713a5?d=mm


    May 09, 2019 09:49

    This problem exists even in Unity 2019.1.

    I have fixed this opening the project with Unity 2018.2.2.1f1 and transcoding the vídeo (was working even without the transcode, the problem is with some Unity versions).

  2. 23a01bc7d643d5fde93144142d94a731?d=mm


    Mar 25, 2019 13:26

    this is still a bug over two years later, despite tons of people chiming in to say dont mark it as fixed.... the fucking unity devs just mark it as fix and move on.. fucking scam

  3. D75d4d9bf14c7b7f38ff392bed1e4ccf?d=mm


    Nov 27, 2018 17:15

    I was experiencing the same issue in Unity 2018.2.0f2 and was able to fix the issue by changing the settings of the video file (I was using an mp4 file). The settings I used were as follows:

    Override for Android ✓

    Transcode ✓
    Dimensions Original (330x1018)
    Codec H264
    Bitrate Mode High
    Spatial Quality High Spatial Quality

  4. 18a1b777907cf253e3286258b12b8033?d=mm


    Nov 13, 2018 06:21

    Still an issue in 2018.2.13 Verified on several android devices. Disabling multi-threaded rendering will allow the videos to play smoothly, but enabling it causes the stutter.

  5. 470c46db9a4ef94dc23c9eeabae99d2e?d=mm


    Jun 06, 2018 23:22

    I think I am seeing this problem with 2018.1. What did you do to fix the issue?

  6. E048100fc31c23e870444a4bd9df5111?d=mm


    Jun 01, 2018 20:30

    Ok, nevermind my comment from yesterday. Got it working and it wasn't the cause of the multithreaded rendering. Sorry for the wrong comment :)

  7. E048100fc31c23e870444a4bd9df5111?d=mm


    May 31, 2018 23:39

    Just had this issue on Android for my app using Unity 2018.1.2f1 on Windows 10. Disabling "multithreaded rendering" eliminates the stuttering, but decreases the performace. Please mark this as NOT FIXED! I'm sorry that I can't submit a bug-report, because I'm not allowed by my client to do so.

  8. 46309494fd7b54debf27725002f61ce6?d=mm


    May 10, 2018 14:30

    Still having this issue. Multi threading has always been disabled for me

  9. 8edb9b179816862ea74cba72d29814a0?d=mm


    Mar 13, 2018 09:02

    this issue is not fixed.
    Video doesn't play at all now on Android devices when multithreaded rendering is disabled.

    Please fix it.

  10. Df1a22687df368a376272c76a32c4703?d=mm


    Feb 21, 2018 16:03

    @MAXBOT and @CLPPK could you submit bug reports with your project? Maybe it's something completely different?

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