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Fixed in 2021.1.X

Fixed in 2020.2.X

Votes

0

Found in

2020.1.15f1

2020.2.0b12

2021.1.0a4

Issue ID

1294898

Regression

Yes

EditorUtility.DisplayProgressBar invoked from an EditorWindow throws an assertion if it gets interrupted

Window management

-

How to reproduce:
1. Open user-submitted project (ProgressBarProblem.zip)
2. Reset the Editor Layout to Default
3. In the Menu bar select Examples > Progress Bar Usage
4. Dock the window
5. Click 'Display bar'
6. While the progress bar is shown, snap the whole Unity Editor window to the side of the monitor

Expected result: no assertions are thrown
Actual result: Assertion failed on expression: 'device.IsInsideFrame()' error is thrown

Reproducible with: 2020.1.15f1, 2020.2.0b12, 2020.2.0b13, 2021.1.0a4, 2021.1.0a7
Not reproducible with: 2018.4.29f1, 2019.4.15f1, 2020.1.0a22
Could not test with: 2020.1.0a23, 2020.1.14f1, 2020.2.0a1, 2020.2.0b11, 2021.1.0a1, 2021.1.0a3(script does not invoke a progress bar at all)

Notes:
Alternative reproduction steps: open the project, use the same menu option to invoke a progress bar and close the Editor while it's in progress. Upon reopening the project the same assertion will be thrown
Script is borrowed from the DisplayProgressBar manual page of 2019.4 manual

  1. Response avatar

    Resolution Note (fix version 2021.1):

    Fixed in 2021.2.0a1

  2. Response avatar

    Resolution Note (fix version 2021.1):

    Fixed in 2021.1.0b5

  3. Response avatar

    Resolution Note (fix version 2020.2):

    Fixed in 2020.2.4f1

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