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Fixed in 2020.2
Planned for 2019.4, 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>
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
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Resolution Note (fix version 2020.2):
Unity engine was corrupting internal mono memory.
Fixed in 2020.2.0b3