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Fixed in 2022.2.X

Fix In Review for 2021.3.X, 2022.1.X

Votes

0

Found in

2021.2

2021.2.1f1

2022.1

Issue ID

1378713

Regression

No

[M1] Crash with * Assertion at handle.c:446, condition `m_class_is_valuetype (klass)' not met when deserializing data

Mono

-

Reproduction steps:
1. Open the user's attached project and scene "Main Menu"
2. Enter play mode
3. Press the "Multiplayer Arena" button

Expected result: Editor loads the Multiplayer Arena scene
Actual result: Editor crashes

Reproducible with: 2021.2.7f1, 2022.1.0b2
Could not test with: 2019.4.34f1, 2020.3.25f1 (compiler errors when downgrading project)

Crashes when executing line 83 in SaveSystem.cs:
PlayerData data = formatter.Deserialize(stream) as PlayerData;

  1. Response avatar

    Resolution Note (fix version 2022.2):

    Fixed in 2022.2.0a9

    A patch has been applied to our fork of Mono to avoid the Editor crash when deserializing errors occur. The runtime will now throw a managed exception.
    https://github.com/Unity-Technologies/mono/pull/1549

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