Sorry for the inconvenience, I'll fix it right now.
Yes, I almost always test to make sure the problem is resolved. What happened this time was so absurd that I didn't expect it to happen. Basically, when tracing the route that the character must follow, I have clicked 4 times with my mouse, which corresponds to her taking 4 steps. But my mouse, which is malfunctioning, made 5 clicks in total without me realizing it, so there was one step left.