Drag and Drop into Batch Processor always asks about files?

I am converting a ton of 24-192 wav files to 24-96 and everytime I drop a folder from Explorer into the Batch Processor - a dialog stops me and asks what kind of files I want to drop.

Why the stoppage? And is there something I need to set to turn it off?


EDIT: Seems it works fine if I drop a group of files - rather than the folder itself. I now understand why it’s asking me for file types - since any number of files “could” be in any given folder.