Udon VM IndexOutOfRangeException

Udon Graph raises exceptions when I make connect flow.


Full error message:

IndexOutOfRangeException: Address: ‘512’ is larger than the UdonVM’s heap size of ‘512’.
VRC.Udon.Common.UdonHeap.CheckHeapBounds (System.UInt32 address) (at <4c6d397d5b214c269dc8a7fd1f428269>:0)
VRC.Udon.Common.UdonHeap.SetHeapVariable[T] (System.UInt32 address, T value) (at <4c6d397d5b214c269dc8a7fd1f428269>:0)
VRC.Udon.UAssembly.Assembler.UAssemblyAssembler.CreateAnonymousStringVariable (System.String anonymousString) (at :0)
VRC.Udon.UAssembly.Assembler.UAssemblyAssembler.VisitInstructionStmt (VRC.Udon.UAssembly.Parser.Stmt+Instruction stmt) (at :0)
VRC.Udon.UAssembly.Parser.Stmt+Instruction.Accept (VRC.Udon.UAssembly.Parser.Stmt+IVisitor visitor) (at :0)
VRC.Udon.UAssembly.Assembler.UAssemblyAssembler.VisitBlockStmt (VRC.Udon.UAssembly.Parser.Stmt+Block stmt) (at :0)
VRC.Udon.UAssembly.Parser.Stmt+Block.Accept (VRC.Udon.UAssembly.Parser.Stmt+IVisitor visitor) (at :0)
VRC.Udon.UAssembly.Assembler.UAssemblyAssembler.Process (VRC.Udon.UAssembly.Parser.Stmt statement) (at :0)
VRC.Udon.UAssembly.Assembler.UAssemblyAssembler.Assemble (System.String assembly) (at :0)
VRC.Udon.EditorBindings.UdonEditorInterface.Assemble (System.String assembly) (at <0aafa2c45c1e484291e22670856c4f53>:0)
VRC.Udon.Editor.UdonEditorManager.Assemble (System.String assembly) (at Assets/Udon/Editor/UdonEditorManager.cs:360)
VRC.Udon.Editor.ProgramSources.UdonAssemblyProgramAsset.AssembleProgram () (at Assets/Udon/Editor/ProgramSources/UdonAssemblyProgram/UdonAssemblyProgramAsset.cs:82)
UnityEngine.Debug:LogException(Exception)
VRC.Udon.Editor.ProgramSources.UdonAssemblyProgramAsset:AssembleProgram() (at Assets/Udon/Editor/ProgramSources/UdonAssemblyProgram/UdonAssemblyProgramAsset.cs:90)
VRC.Udon.Editor.ProgramSources.UdonAssemblyProgramAsset:RefreshProgramImpl() (at Assets/Udon/Editor/ProgramSources/UdonAssemblyProgram/UdonAssemblyProgramAsset.cs:36)
VRC.Udon.Editor.ProgramSources.UdonGraphProgram.UdonGraphProgramAsset:RefreshProgramImpl() (at Assets/Udon/Editor/ProgramSources/UdonGraphProgram/UdonGraphProgramAsset.cs:62)
VRC.Udon.Editor.ProgramSources.UdonProgramAsset:RefreshProgram() (at Assets/Udon/Editor/ProgramSources/UdonProgram/UdonProgramAsset.cs:106)
VRC.Udon.Editor.UdonEditorManager:RefreshQueuedProgramSources() (at Assets/Udon/Editor/UdonEditorManager.cs:125)
VRC.Udon.Editor.UdonEditorManager:QueueAndRefreshProgram(AbstractUdonProgramSource) (at Assets/Udon/Editor/UdonEditorManager.cs:111)
VRC.Udon.Editor.ProgramSources.UdonGraphProgram.UI.GraphView.UdonGraph:Compile() (at Assets/Udon/Editor/ProgramSources/UdonGraphProgram/UI/GraphView/UdonGraph.cs:1046)
VRC.Udon.Editor.ProgramSources.UdonGraphProgram.UI.GraphView.UdonGraph:OnExecuteCommand(ExecuteCommandEvent) (at Assets/Udon/Editor/ProgramSources/UdonGraphProgram/UI/GraphView/UdonGraph.cs:751)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Error Loading Node VRCUdonCommonInterfacesIUdonEventReceiver.__SendCustomEventDelayedSeconds__SystemString_SystemSingle_VRCUdonCommonEnumsEventTiming__SystemVoid : Object reference not set to an instance of an object
UnityEngine.Debug:LogError (object)
VRC.Udon.Editor.ProgramSources.UdonGraphProgram.UI.GraphView.UdonGraph:Reload () (at Assets/Udon/Editor/ProgramSources/UdonGraphProgram/UI/GraphView/UdonGraph.cs:847)
VRC.Udon.Editor.ProgramSources.UdonGraphProgram.UI.GraphView.UdonGraph:DelayedReload () (at Assets/Udon/Editor/ProgramSources/UdonGraphProgram/UI/GraphView/UdonGraph.cs:678)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()