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Fixed in 2021.2.X

Fixed in 2020.3.X



Found in






Issue ID




[WebGL] FMOD error spam in the console when playing an Audio Clip in a Timeline



How to reproduce:
1. Open the user's attached "" project
2. Open the "SampleScene" Scene
3. Go to File -> Build Settings
4. Make sure Platform is set to WebGL
5. Press Build And Run
6. Inspect the console in the browser

Expected result: No error messages are spammed in the browser's console
Actual result: "FMOD returns error code 78 (FMOD_ERR_UNIMPLEMENTED) executing setMix" error message is getting spammed in the browser's console

Reproducible with: 2019.1.0a8, 2019.4.9f1, 2020.1.4f1, 2020.2.0a21
Not reproducible with: 2018.4.26f1, 2019.1.0a7

- In 2018.4.26f1 - 2019.1.0a7 the same message is getting spammed as info message, but not as an error message (which should be the correct behavior, since the console could be filtered and important error messages would be visible, while in 2019.4, 2020.1 and 2020.2 error messages are getting spammed and important error messages can be lost in all of that spam)

  1. Resolution Note (fix version 2021.2):

    Fixed in: 2021.2.0a7

  2. Resolution Note (fix version 2020.3):

    Fixed in: 2020.3.39f1

Comments (16)

  1. alegracloudbuild

    Jul 06, 2023 17:13

    an issue on 2021.3.21f1

  2. eyalfx

    Apr 17, 2023 20:40

    Still seeing these issues in Unity 2019.4 and 2020.3.47f1

  3. AndrewAlexArt

    Apr 05, 2023 11:06

    2022.2.12f1 still spamming these errors!!!

  4. GrafDan

    Mar 31, 2023 20:19

    I just updated from "2021.3.13f1" to "2022.2.12f1" and now get that error constantly spammed.

  5. Next1on

    Dec 28, 2022 17:50

    the error is still reproducible in 2022.2

  6. matthew_carnegie

    Aug 24, 2022 16:33

    We are still looking forward to the 2020.3.X fix for this. I Hope it is released soon.

  7. Riffar

    Apr 21, 2022 20:31

    EDIT: in 2021.3.0f1, when browser window is minimized, or another browser tab is active, coming back to the tab with the game makes the audio work. Please help!

  8. Riffar

    Apr 21, 2022 20:11

    Still getting these errors in WEBGL builds from 2021.3.0f1 ( = 2021 LTS !!!) and audio won't play.
    Getting the same errors from 2020.3.26f1 but audio plays there. So that means I have to continue my project with the old version instead of the newer LTS version??

  9. zihuicentury

    Apr 12, 2022 09:50

    Please fix this in 2020.x LTS?

  10. xavier-ateo

    Mar 21, 2022 14:59

    Please backport this fix to 2020 LTS

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