PTC University Skill Questions - Is this answer right?

I've been gradually working through all 118 Creo skill quesitons. I have found two that keep getting points taken off, but I just can't find a way to fix them.

For example, the 4th surfacing question that uses q3193_geometry.prt. I get the feedback -

The feature id $cor_feat_id; cannot be resumed in the user-submitted model.

While I can resume the feature in my model, this appears to be an issue in the grading.