No snap points available

AC 2015, Win 7 64

I created the attached model and sections yesterday and everything went great. However

Now that I need to add/edit some parts, everything is going wrong.

If I try to add/move anything, I cannot select any snap points. The parts say they are solids but the seem more like blocks.

Does the sectionplane command and/or the generate section somehow change things?

Any help is greatly appreciated.

I even tried a reinstall of the software, thinking something went wrong.

Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.

Image may be NSFW.
Clik here to view.