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KeyNotFoundException: The given key '89302010' was not present in the dictionary. Network Scene Manager

See original GitHub issue

Description

When my client joins a host the scene loads but the gives the error KeyNotFoundException: The given key '89302010' was not present in the dictionary.

This happened when I updated from 1.0.2 to 1.1.0.

Reproduce Steps

Have a client join a host who is on a different scene than the client

Actual Outcome

Scene was loaded. No network objects spawn. No RPCs get received.

Expected Outcome

Scene should load and network objects should sync.

Environment

OS: Windows
Unity Version: 2021.3.6f1
Netcode Version: 1.1.0

Additional Context

Trace:

KeyNotFoundException: The given key '89302010' was not present in the dictionary.
System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) (at <e40e5a8f982c4b618a930d29f9bd091c>:0)
Unity.Netcode.NetworkSceneManager.GetSceneRelativeInSceneNetworkObject (System.UInt32 globalObjectIdHash, System.Nullable`1[T] networkSceneHandle) (at Library/PackageCache/com.unity.netcode.gameobjects@1.1.0/Runtime/SceneManagement/NetworkSceneManager.cs:755)
Unity.Netcode.NetworkSpawnManager.CreateLocalNetworkObject (Unity.Netcode.NetworkObject+SceneObject sceneObject) (at Library/PackageCache/com.unity.netcode.gameobjects@1.1.0/Runtime/Spawning/NetworkSpawnManager.cs:385)
Unity.Netcode.NetworkObject.AddSceneObject (Unity.Netcode.NetworkObject+SceneObject& sceneObject, Unity.Netcode.FastBufferReader variableData, Unity.Netcode.NetworkManager networkManager) (at Library/PackageCache/com.unity.netcode.gameobjects@1.1.0/Runtime/Core/NetworkObject.cs:1287)
Unity.Netcode.SceneEventData.SynchronizeSceneNetworkObjects (Unity.Netcode.NetworkManager networkManager) (at Library/PackageCache/com.unity.netcode.gameobjects@1.1.0/Runtime/SceneManagement/SceneEventData.cs:864)
Unity.Netcode.NetworkSceneManager.HandleClientSceneEvent (System.UInt32 sceneEventId) (at Library/PackageCache/com.unity.netcode.gameobjects@1.1.0/Runtime/SceneManagement/NetworkSceneManager.cs:1781)
Unity.Netcode.NetworkSceneManager.ClientLoadedSynchronization (System.UInt32 sceneEventId) (at Library/PackageCache/com.unity.netcode.gameobjects@1.1.0/Runtime/SceneManagement/NetworkSceneManager.cs:1747)
Unity.Netcode.SceneEventProgress.<SetAsyncOperation>b__37_0 (UnityEngine.AsyncOperation asyncOp2) (at Library/PackageCache/com.unity.netcode.gameobjects@1.1.0/Runtime/SceneManagement/SceneEventProgress.cs:236)
UnityEngine.AsyncOperation.InvokeCompletionEvent () (at <4a31731933e0419ca5a995305014ad37>:0)