DoubleArrow peaking on one side

Hey, I do have a problem with a DoubleArrow in manim. The inner line (arrow line) is peaking out too far on one side of the Arrow: -<-->. If I increase the length of the DoubleArrow, it peaks out on the other side so. I saw that geometry.py was edited 15 months ago on Github and thought perhaps they changed something, but I'm too much of a rookie to know what to change. Could you help me?