Unreal Engine 5.5 UI Rendering Issue - New Windows Open Incorrectly

Description (문제 설명)
Hello, I am experiencing a UI rendering issue in Unreal Engine 5.5.
Whenever I try to open a new option window (such as context menus, setting panels, or additional tool windows), instead of the correct settings or control panel appearing, an empty or incorrect window opens.
The issue occurs immediately after launching the engine, without any additional settings being changed.
So far, I have tried the following solutions:
• Reinstalling GPU drivers (NVIDIA/AMD)
• Uninstalling and reinstalling Unreal Engine 5.5
Unfortunately, I have not been able to switch between DirectX 12 and DirectX 11 yet, because the UI issue makes it difficult to navigate settings properly.
System Specs:
• OS: Windows 11 pro (23h2) (Please confirm exact version)
• CPU: i7-13620h
• GPU: NVIDIA RTX 4060 (Please specify model & driver version)