Short Description being auto-populated on portal load

I want users to enter their own Short Description when submitting a ticket.

When users click the form to submit a ticket, the short description is auto-populating with the subcategory. Users can change this, but most do not.

I removed the steps in the Save/Submit One Steps that modifed the fields on save, however, that has no effect since the field is being pre-populated.

I've looked at the auto-populate settings for the Short Description field but it wasn't filled out. I'm not sure where else I can check that would be doing this.