For some reason when ever I use shape layers, Photoshop bricks the file after it is saved. After working on a project for several hours, I came back to realize the .psd could not be opened. It also could not be opened on my college's machine.
As a test, I put one single shape layer in a blank project and saved it. The same result. Any file containing shape layers cannot be opened. Project with one shape layer attached. Thank you.