Could be that, if the class not the instance being edited.
// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "TestActor.generated.h"
UCLASS()
class TPSCUSTOMENGINE_API ATestActor : public AActor
{
GENERATED_BODY()
public:
ATestActor();
UPROPERTY(EditAnywhere, BlueprintReadWrite)
float Speed = 100.0f;
protected:
// Called when the game starts or when spawned
virtual void BeginPlay() override;
public:
// Called every frame
virtual void Tick(float DeltaTime) override;
};
do like this or as said place in level as instance and edit. Otherwise class default will be used from spawn.