I use the Excel Import tool quite often and I just uploaded a freshly built, 1 product, 4 variant, Excel import file successfully. However, after uploading I decided to trim the descriptions down a bit in my Excel file and upload the new version. I am repeatedly getting this error, "Exception=External references are currently not supported." Considering my Excel file is exactly the same as before, just with a shorter description, I am unable to figure this one out. I have even tried changing the file name and nuking the originally imported product/variants, but still get this error. Does anyone know how to resolve this?