Crash when opening project on Macbook Pro Retina

Edit: This probably has nothing to do with macs.

<unknown module>! UBlueprint* CastChecked<UBlueprint, UObject>(UObject*, ECastCheckedType::Type)
<unknown module>! UBlueprintGeneratedClass::GetAuthoritativeClass()
<unknown module>! UK2Node_CallFunction::CreateSelfPin(UFunction const*)
<unknown module>! UK2Node_CallFunction::CreatePinsForFunctionCall(UFunction const*)
<unknown module>! UK2Node_CallFunction::AllocateDefaultPins()
<unknown module>! UK2Node::ReconstructNode()
<unknown module>! UEdGraphSchema_K2::ReconstructNode(UEdGraphNode&, bool)
<unknown module>! FBlueprintEditorUtils::RefreshExternalBlueprintDependencyNodes(UBlueprint*, UStruct*)
<unknown module>! UBlueprintGeneratedClass::ConditionalRecompileClass(TArray<UObject*, FDefaultAllocator>*)
<unknown module>! FScopedClassDependencyGather::~FScopedClassDependencyGather()

User is seeing a crash when they are opening their Blueprint + Code Project on their Macbook Pro Retina.

The user has also attached multiple txt documents to this post that may help decipher the error that they are seeing.

Crash Logs:

• [Link Removed]
• [Link Removed]
• [Link Removed]

Callstack: attachment

Unable to reproduce internally