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Fixed in 2020.1

Fixed in 2018.4, 2019.3

Votes

1

Found in

2017.4

2018.4

2019.2

2019.2.11f1

2019.3

2020.1

Issue ID

1197716

Regression

No

Unity hangs on quit after failing to load large number of Video Clips from URL at once

Video

-

How to reproduce:
1. Open the attached project "1197716.zip"
2. Enter Play mode
3. Exit Play mode
4. Exit Unity

Expected result: Unity quits
Actual result: Unity hangs

Reproducible with: 2017.4.35f1, 2018.4.14f1, 2019.2.15f1, 2019.3.0f2, 2020.1.0a15

Notes:
Additionally, Unity will fail to load even a single VideoPlayer request to the URL when reentering Play mode.

  1. Response avatar

    Resolution Note (fix version 2020.1):

    Internal usage of UnityWebRequest during connection to web server was overcommitting background job threads. Limiting concurrency prevents starvation of the background job thread pool and all movie downloads now properly complete.

Comments (1)

  1. 477f29d50a4b566c88a1d74f9d1817da?d=mm

    ThisIsDangerous

    Dec 03, 2019 17:11

    > Additionally, Unity will fail to load even a single VideoPlayer request to the URL when reentering Play mode.

    Not only VideoPlayer request but even a UnityWebRequest too.

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