Why won't saved pictures from texts show up in my photos?

[AC Question]

I have a Google Nexus 5, and am simply trying to save a picture from a text my friend sent me. I open the picture, hit save, and "Photo saved" pops up. However, when I go into my pictures, it's not there. I'm running two google accounts concurrently on it (my personal and school accounts) so I'm curious if that might be causing an issue.