Only happened to me once, and it didn't jump from it. Mainly because I wasn't exactly paying attention to the screen.
Anyway, if you're scared:
1. Press Triangle/Y, Press X/A, and open the Krypt it lands on. Repeat until entire Krypt is unlocked.
It's sort of faster this way AND I didn't run in to any Goblins. I started using that method after about only 10% unlocked (I only went for the costumes to begin with).