Trilib: Select files from iOS, nothing happens - ios

Question

I have some issue while using Trilib on iOS with LoadModelFromFilePickerAsync, although it runs well on Android, Unity Editor, and Mac.
Here code:
var assetLoaderOptions = AssetLoader.CreateDefaultLoaderOptions();
var filePickerAssetLoader = AssetLoaderFilePicker.Create();
filePickerAssetLoader.LoadModelFromFilePickerAsync("Load model",
onLoad,
onMaterialsLoad,
onProgress,
onBeginLoad,
onError,
null,
assetLoaderOptions);
private void onBeginLoad(bool x)
{
btnUploadModel3D.interactable = true;
if (x == true)
{
uiCoat.SetActive(true);
uiBFill.SetActive(true);
// txtPercent.text="0%";
}
else
{
// txtPercent.text="";
ReStore();
}
}
private void onError(IContextualizedError obj)
{
btnUploadModel3D.interactable = true;
ReStore();
warningFileFormat.enabled = true;
warningFileSize.enabled = false;
}
private void onProgress(AssetLoaderContext assetLoaderContext, float progress)
{
}
private void onMaterialsLoad(AssetLoaderContext x)
{
}
private void onLoad(AssetLoaderContext x)
{
string path = ModelManager.modelFilepath;
var fileInfo = new System.IO.FileInfo(path);
var lengthFile = fileInfo.Length / 1000000;
var modelName = getModelName(path);
string formatFile = ModelManager.modelExtension.ToUpper();
if (Array.IndexOf(arrFormatFile, formatFile) < 0)
{
ReStore();
warningFileSize.enabled = false;
warningFileFormat.enabled = true;
}
else
{
if (lengthFile > 100)
{
ReStore();
warningFileSize.enabled = true;
warningFileFormat.enabled = false;
}
else
{
x.RootGameObject.tag = "ModelClone";
x.RootGameObject.name = modelName;
warningFileFormat.enabled = false;
warningFileSize.enabled = false;
UploadModelToServer(File.ReadAllBytes(path), path);
DontDestroyOnLoad(x.RootGameObject);
}
}
}
I used the above code to select file with extension: .fbx, .zip, .obj, .glb from my iPhone. I selected a file with extension in that list, nothing happens though. There are no errors reported.
How can I fix it ? Thanks.