Description

This is from a UDN and I was not able to reproduce it locally in Release-5.0 or Ue5/Main, creating this issue for tracking. 

Steps to Reproduce
  1. Paste this assign node into begin play: 
  2. Begin Object Class=/Script/BlueprintGraph.K2Node_AssignmentStatement Name="K2Node_AssignmentStatement_2"
       NodePosX=928
       NodePosY=-384
       NodeGuid=245FC15A43EE0B463630A1AE0517EBC8
       CustomProperties Pin (PinId=5227880848B3BE5239DCA8917B57D021,PinName="execute",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_CallFunction_0 863DBFFD45828A6A19C062891C9D6674,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
       CustomProperties Pin (PinId=CF5C53ED4099074EE687DDBAB5C65FE6,PinName="then",Direction="EGPD_Output",PinType.PinCategory="exec",PinType.PinSubCategory="",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
       CustomProperties Pin (PinId=803FCC5645D994B9C463E9AB84181B4C,PinName="Variable",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,LinkedTo=(K2Node_VariableGet_1 A80EC5A44B1F50D9BB465B9A40AAC3A4,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
       CustomProperties Pin (PinId=28542F224E679A3EB4DC4B90C2982F7C,PinName="Value",PinType.PinCategory="real",PinType.PinSubCategory="double",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,PinType.bIsUObjectWrapper=False,PinType.bSerializeAsSinglePrecisionFloat=False,PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
    End Object
    
    

    3. Connect a float property to, and leave the value set at 0.0

  3. Pie

Crash

Callstack

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x0000000000000000

 

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Core

UnrealEditor_Core

UnrealEditor_Core

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_UnrealEd

UnrealEditor_UnrealEd

UnrealEditor_DisplayClusterEditor

UnrealEditor

UnrealEditor

UnrealEditor

UnrealEditor

UnrealEditor

UnrealEditor

kernel32

ntdll

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-150140 in the post.

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Cannot Reproduce
ComponentUE - Gameplay - Blueprint Compiler
Affects Versions5.0.1
Target Fix5.0.2
CreatedApr 25, 2022
ResolvedApr 25, 2022
UpdatedMay 2, 2022
View Jira Issue