My descendants charts work the same way, Judi. I think this is just an interpretation issue, not a coding error. The colored line that appears directly under a person's name is not meant to connect that person to his/her siblings, rather it's meant to highlight that person's children who are shown one more indent to the right. (Note that there are no lines connecting siblings when there's a sibling who has no children listed.) So the red line under grandma's name appears when you look at great-grandma's descendants page, and appears to the left of grandma's children, highlighting the grandchildren of great grandma. I'll certainly concede you the argument that it's not the clearest presentation there has ever been (and that this is probably not the clearest explanation there has ever been)!