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Fixed in 2020.2

Planned for 2019.4

Fixed in 2020.1

Votes

1

Found in

2018.4

2020.2

2020.2.0a20

Issue ID

1268308

Regression

No

[Mono] ArrayTypeMismatchException is thrown when using List of generic ICollection<T>

Mono

-

Reproduction steps:
1. Open the attached project ("case_1268308-Mono_Co-Variance.zip")
2. Open the repro scene ("SampleScene")
3. Enter Play Mode
4. Press Spacebar
5. Inspect Console

Expected result: No errors are thrown
Actual result: "ArrayTypeMismatchException: Attempted to access an element as a type incompatible with the array." exception is thrown

Reproducible with: 2018.4.26f1, 2019.4.7f1, 2020.1.2f1, 2020.2.0a20

  1. Response avatar

    Resolution Note (fix version 2020.2):

    Unity engine was corrupting internal mono memory.
    Fixed in 2020.2.0b3

  2. Response avatar

    Resolution Note (fix version 2020.1):

    Fixed in 2020.1.14f1

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