Is Defect Detection Extention working as intended?

I’m trying to use the Defect Detection extension to generate scracthes onto a car part, but I don’t think it’s applying the scracthes as intended. A mesh shell seems to be created around the target object but after we “Preview”, the scracthes are nowhere to be seen.

Projection shell created after pressing “Recreate Replicator Graph”:

The segmentation results are as follows:

It seems as if it’s considering the whole mesh shell as the scracth and not applying any of the .png scratches from the directory it’s given onto the car part.
Does anyone know how can I solve this issue?

Thank you for your attention in advance!