I think that the section in red is correct (cube has already been scythed or whatever turns it dark blue in the history) - is there a way to address this?
Thanks for reporting! I had a look at this cube and I agree that the bouton (red part) does belong. A scythe probably removed it because this bouton is an intersection where several branches have merged together (like a ball of yarn). However, with some careful tracing the correct segments can be added without creating any mergers
For the future, you can report any questions you have about a cube here in the forum, by emailing Eyewire HQ at firstname.lastname@example.org or by just asking in chat!