The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received undefined" helppp

Ahh sorry about that @jimijim, the example wasn't meant to be replicated just to illustrate the way i behaves in preview mode.

As for as your setup goes I'd just recommend passing either {{ filefile.value[0] }} instead of {{ filefile.value }} :

Or, following these docs and using {{ {...filefiles.files[0], data: filfile.value[0]} }}:

Can you let me know if either of those work?