Unable to load glb model locally and I am confused by the import/plugin documentation

Questions
6

I changed out my local .glb files for a url to a .glb file on the playground. This got me past an issue with attempting to get a file to the client, so that is one issue that may be solved on its own once this is published to a test server.

I can not get the model to render, due to another issue that a friend found only one instance of from googling, and that is from this very forum thread, and that is this "addPendingData is not a function):

***Exception:Microsoft.JSInterop.JSException: scene.addPendingData is not a function
TypeError: scene.addPendingData is not a function
    at https://cdn.babylonjs.com/babylon.max.js:116441:27
    at step (https://cdn.babylonjs.com/babylon.max.js:203:21)
    at Object.next (https://cdn.babylonjs.com/babylon.max.js:184:51)
    at https://cdn.babylonjs.com/babylon.max.js:177:69
    at new Promise (<anonymous>)
    at __awaiter (https://cdn.babylonjs.com/babylon.max.js:173:10)
    at appendSceneImplAsync (https://cdn.babylonjs.com/babylon.max.js:116419:61)
    at https://cdn.babylonjs.com/babylon.max.js:116549:13
    at new Promise (<anonymous>)
    at appendSceneSharedAsync (https://cdn.babylonjs.com/babylon.max.js:116547:12)
   at Microsoft.JSInterop.JSRuntime.InvokeAsync[TValue](Int64 targetInstanceId, String identifier, Object[] args)
   at Microsoft.JSInterop.JSObjectReferenceExtensions.InvokeVoidAsync(IJSObjectReference jsObjectReference, String identifier, Object[] args)
   at Babylon.Blazor.Babylon.Scene.AppendSceneGLB(String assetUrl, Scene scene) in C:\Users\jgoulding\Source\Repos\MSBabylonBlazorTest\Babylon.Blazor.Lib\Babylon\Scene.cs:line 243
   at Babylon.Blazor.ModelCreator.CreateAsync(BabylonCanvasBase canvas) in C:\Users\jgoulding\Source\Repos\MSBabylonBlazorTest\Babylon.Blazor.Lib\ModelCreator.cs:line 45
   at Babylon.Blazor.BabylonCanvasBase.InitializeSzene(BabylonInstance babylonInstance, String canvasId) in C:\Users\jgoulding\Source\Repos\MSBabylonBlazorTest\Babylon.Blazor.Lib\BabylonCanvasBase.cs:line 47
   at Babylon.Blazor.BabylonCanvasBase.OnAfterRenderAsync(Boolean firstRender) in C:\Users\jgoulding\Source\Repos\MSBabylonBlazorTest\Babylon.Blazor.Lib\BabylonCanvasBase.cs:line 105

This is attempting to use the AppendSceneAsyc(path, scene) function. Another friend of mine told me that it is because “addPendingData” is deprecated and the CDN of Babylon.js we are using is too new compared to the code, and he claims that he reverted back to v4.2.0 and this error stopped. I switched to the max.js CDN in order to step through the library, and I am not sure what is going on with this anymore.

I did find one forum post from 2021 that you assisted with that also gets a “scene._____ is not a function” error, but it seems unrelated to the issue I am facing now: Forum Post