If a long string with multibyte characters is used in a GameObject name with Multiplayer tools installed in the project, an error may occur. The error does not always occur, but quite often.
In the StringConversionUtility, it seems that processing is being done to make the byte size fit into FixedString64Bytes, but the implementation does not seem to take multibyte characters into account.
The error log is as follows.
ArgumentException: FixedString64Bytes: Truncation while copying "[xxxxxxxxx] 0000 あいうえおかきくけこさしすせそ (xxxxxxxxx=000000000)"
Unity.Collections.FixedString64Bytes.CheckCopyError (Unity.Collections.CopyError error, System.String source) (at ./Library/PackageCache/com.unity.collections@2.2.1/Unity.Collections/FixedString.gen.cs:3562)
Unity.Collections.FixedString64Bytes..ctor (System.String source) (at ./Library/PackageCache/com.unity.collections@2.2.1/Unity.Collections/FixedString.gen.cs:2975)
Unity.Collections.FixedString64Bytes.op_Implicit (System.String b) (at ./Library/PackageCache/com.unity.collections@2.2.1/Unity.Collections/FixedString.gen.cs:3487)
Unity.Multiplayer.Tools.MetricTypes.StringConversionUtility.ConvertToFixedString (System.String value) (at ./Library/PackageCache/com.unity.multiplayer.tools@1.1.0/MetricTypes/Runtime/MetricTypes/StringConversionUtility.cs:33)
Unity.Multiplayer.Tools.MetricTypes.NetworkObjectIdentifier..ctor (System.String name, System.UInt64 networkId) (at ./Library/PackageCache/com.unity.multiplayer.tools@1.1.0/MetricTypes/Runtime/MetricTypes/NetworkObjectIdentifier.cs:11)
Unity.Netcode.NetworkMetrics.GetObjectIdentifier (Unity.Netcode.NetworkObject networkObject) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Metrics/NetworkMetrics.cs:527)
Unity.Netcode.NetworkMetrics.TrackNetworkVariableDeltaSent (System.UInt64 receiverClientId, Unity.Netcode.NetworkObject networkObject, System.String variableName, System.String networkBehaviourName, System.Int64 bytesCount) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Metrics/NetworkMetrics.cs:231)
Unity.Netcode.NetworkVariableDeltaMessage.Serialize (Unity.Netcode.FastBufferWriter writer, System.Int32 targetVersion) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Messaging/Messages/NetworkVariableDeltaMessage.cs:108)
Unity.Netcode.NetworkBehaviour.NetworkVariableUpdate (System.UInt64 targetClientId, System.Int32 behaviourIndex) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Core/NetworkBehaviour.cs:889)
Unity.Netcode.NetworkBehaviour.VariableUpdate (System.UInt64 targetClientId) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Core/NetworkBehaviour.cs:843)
Unity.Netcode.NetworkBehaviourUpdater.NetworkBehaviourUpdate () (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Core/NetworkBehaviourUpdater.cs:53)
Unity.Netcode.NetworkBehaviourUpdater.NetworkBehaviourUpdater_Tick () (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Core/NetworkBehaviourUpdater.cs:125)
Unity.Netcode.NetworkTickSystem.UpdateTick (System.Double localTimeSec, System.Double serverTimeSec) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Timing/NetworkTickSystem.cs:102)
Unity.Netcode.NetworkTimeSystem.UpdateTime () (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Timing/NetworkTimeSystem.cs:139)
Unity.Netcode.NetworkManager.NetworkUpdate (Unity.Netcode.NetworkUpdateStage updateStage) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Core/NetworkManager.cs:54)
Unity.Netcode.NetworkUpdateLoop.RunNetworkUpdateStage (Unity.Netcode.NetworkUpdateStage updateStage) (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Core/NetworkUpdateLoop.cs:185)
Unity.Netcode.NetworkUpdateLoop+NetworkPreUpdate+<>c.<CreateLoopSystem>b__0_0 () (at C:/Users/manome shuhei/Documents/HoloEarthV2/com.unity.netcode.gameobjects/Runtime/Core/NetworkUpdateLoop.cs:232)