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Fixed in 2022.1.X

Fixed in 2021.2.X



Found in


Issue ID




[SERIALISATION] Going into play mode does not deserialize the object properly



When going into play mode, a Prefab with the attached MonoBehaviour with an override on the string value for the objectValue will not deserialize the object properly.

1. Open provided project
2. Open SampleScene
3. Select TestPrefab in hierachy
4. Change string fields, Enter playmode

Expected Result: no error
Actual Result: Error printed in console: A field decorated with [SerializeReference] references an unknown managed type!

Notes: If the error does not occur, try changing the string once more and entering play mode again. Mostly required in 2022.1.
Changing the options of Domain reload and reload scene on enter Playmode does not affect the results (Preferences/Editor)

  1. Resolution Note (fix version 2022.1):

    Fixed in 2022.1.0b1

  2. Resolution Note (fix version 2021.2):

    Fixed in 2021.2.6f1

Comments (1)

  1. Catsoft-Works

    Dec 20, 2021 16:35

    This has only been partially fixed. Now when instantiating a prefab variant with an overriden field that is marked as [SerializeReference] will not use the overriden value, but the last selected one from a component of the same type.

    This is most likely a caching issue where the last value used is used.

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