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Fixed in 2021.2.X
Votes
0
Found in
2019.4
2020.2.2f1
2020.3
2021.1
2021.2
Issue ID
1317343
Regression
No
Editor crashes on opening Project due to Serialization Memory Leak
Reproduction steps:
1. Open user attached project
Expected result: The project is opened
Actual result: The Editor increases in memory usage until it overloads and crashes
Reproducible with: 2019.4.22f1 2020.3.0f1, 2021.1.0b11, 2021.1.0a9
Could not test with: 2018.4.33f1 (Compiler errors)
Notes:
Error in the logs: `Serialization depth limit 10 exceeded`
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Resolution Note (fix version 2021.2):
When a base class has many fields of a derived class, that are being serialized by-value, then this recursive definition can cause an long delay and out of memory crash. The fix will detect such a recursive definition and not serialize the field, just as fields inside a class are not serialized if they have the class as their type. ScriptableObjects or [SerializeReference] should be used instead of by-value serialization for this sort of data structure design.
Fixed in 2022.1.0a16