Updating to Beta unparents children of certain prefabs

Unity Engine
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1

I updated from 2021.2.7 to 2022.1.0b8.

When updated, some prefabs will unparent all their children. I don’t know how to reproduce this as I put that same prefab into a new project in 2021.2.7 and updated it to the beta, but it didn’t break.

The error I get in my main project:

Assertion failed on expression: ‘(prefabInstance->GetMergedStatus() == PrefabInstance::kNormalMerge) == !prefabInstance->GetPrefabModification().HasValidAddedGameObjects()’
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

Is this a known issue? Is there anyway around this or specific to the prefab I can change so it won’t unparent all its children?

2

A number of fixes to the upgrade process is coming in one of the next 22.1 releases

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