Broken Yo-kai scanner glitch. Help would be appreciated.

Recently I decided to play through Yo-kai watch 1 on my very real 3DS. I just upgraded my watch from E to D-rank, and noticed something strange. That being that the scanner no longer appears in the top right corner of the screen, even when I'm standing right next to a tree a Yo-kai is in. I've tried restarting the very real 3DS a few times, but it still won't appear.

Has anyone encountered a similar glitch, or know how to fix it?