Track 2 of The Other Side of the Hourglass OST:
https://www.youtube.com/watch?v=iZQgXr8vzuw Stitchy notices something wrong with Psychic and asks them about it. Psychic shrugs it off before later writing a note to their friends explaining that they will find out the source of the strange glitches in the world.
Inkwell SMP Movie: The Other Side of the Hourglass