DataPrep asset not importing FBXs

[Przemek73]

I got a response from Epic rep stating that: At this time Dataprep can only import the files that are supported by Datasmith. This means that you can...

[Przemek73]

So I created a DataprepAsset and try to import multiple FBX files using the Inputs and selecting the folder, but when I click on the Import icon nothing...