Not an error. The top right portion is a solid line with four dots through it. So it would be the single line, otherwise the one to the left of it wouldn't have the dot breaks.
Omg... You're absolutely right. Good job noticing that!
Though now Im just wondering why it doesnt just look the same as the One Line Four Dots on the other side. Changing the expected format in hopes that players will notice the one instance where there is no space between the dots and lines is a bit too inconsistent of a design...