Access Violation Exception on String Delete/Deallocate when accessing AttributeValue

[ericmallon]

I'm running into consistent Access Violation Exceptions on the Delete operator/deallocate when interacting with the properties returned from a Aws::DynamoDB::Model::QueryRequest query.
With this code, it will give the exception every time it is run:

FString ULoftiaPersistenceService::PropToString(const Aws::Map<Aws::String, Aws::DynamoDB::Model::AttributeValue> Item, const Aws::String Prop)
{
	 Aws::DynamoDB::Model::AttributeValue AttributeValue = Item.at(Prop);
	 Aws::String ResultStr = AttributeValue.GetS();
         return FString(ResultStr.c_str());
}

Commenting out the " Aws::String ResultStr = AttributeValue.GetS();" and returning a hardcoded string will make it and all other code work 100% of the time. And if I switch it instead to use a Json view like this:

Aws::Utils::Json::JsonValue Json = AttributeValue.Jsonize();
		Aws::Utils::Json::JsonView View = Json.View();
		Aws::String AwsString = View.WriteCompact();
		return FString(AwsString.c_str());

It will crash the same way, but usually not the first time I execute the function. I can see that the data is all getting back just fine from when it does work, anyone have any ideas what I could be doing wrong? This code is being run inside Unreal Engine 5, which has its own memory management solution -- could they be conflicting? If so, how might I get around this?

The data is all coming back from DynamoDB just fine, I don't mind cloning it into new objects or whatever workaround is needed, I just need the memory management stuff to stop blowing up.

Edit: A (bad) workaround is:

Aws::DynamoDB::Model::AttributeValue AttributeValue = Item.at(Prop);
std::string* StrOnHeap = new std::string(AttributeValue.GetS());
return FString(StrOnHeap->c_str());

Which will get past the error by causing a memory leak. If I do try to free the string I created, it goes back to the same crash during deallocation.

I'm also running into the same issue when iterating over const Aws::VectorAws::String TriggerVector = AttributeValue.GetSS();

Attached an image of the stack when it blows up.

[jmklix]

We don't currently support unreal engine. Can you reproduce this bug on its on with a minimal code sample?

[jmklix]

Please follow this feature request for the status of Unreal Engine support with this sdk: #2369

[github-actions[bot]]

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