Unable to Open Level in HTML5

Trying to use an Open Level function in HTML5 does not allow the level to actually load. Instead, the project flashes and refreshes back to its original position.

Open Level function does work on Windows platform, which was tested in comparison.

1. Download Project: [Link Removed]
or Google Drive: [Link Removed]
2. Unzip the project and open it within UE4
3. Go to: File > Package Project > HTML5
4. Use the HTML5Helper.exe
5. Launch the project with the beginning address of: Http://localhost:8000/
6. Click on the 'Play' button

Expected: The Level should load.
Result: The Level does not load. It turns to a black screen that says Artefacts: /5 and then goes back to the main menu.

How does TextureRenderTarget2D get TArray<uint8> type data?

Why does the REMOVE method of map container remove elements have memory leaks?

UMG RichText not appear image when packaged

How do I set a material as a post-processing material?

Do I need to call Destory method to remove components from Actor when Destory method to remove Actor?

How would I go about lerping the rotation instead of it snapping when turning (pls dont sue me epic)

How to delete some elements correctly when deleting an array loop?

What is the difference between Camera and CineCamera?

How to implement springarm components to scale according to mouse position in spawn?

What controls of umg have mouse wheel events in UE4.27?