Question:
My boundary and buffer polygons keep getting deleted. In the hydro-conditioning process I am running the D8 Processing Tool, running the PD Flow Network, running the Depression Depth Tool, adding cutlines feature class, creating cutlines and then running the Manual Cutter Tool. Afterwards, when I run the PD Flow Network or the Depression Depth Tool after making edits my boundary and buffer lines get deleted. Why is this happening?

Answer:
I suspect that as part of your editing process you are inadvertently deleting features from the watershed boundary (bnd) and buffered boundary (buf) feature classes. If you set the feature class that you intend to edit (cut-lines or dam-lines) to ‘the only selectable feature class’, this should prevent you from including the bnd and buf features in your selection and the deleting them. You can set this condition individually for each feature class by right-clicking on the TOC entry and finding the Selection tab…or use the List By Selection tab at the top of the TOC to manage the selectable features.