Lines generating weirdly from the past point I am selecting

I am new to grasshopper and trying out various tutorials and things. I was trying to make trees and everything was fine until when I made multiple points in Rhino and did Set multiple points in grasshopper. I noticed that the last point that I picked is generating lines in a weird way. I am not understanding the reason for the same.

I saw one more post similar to this tree problem. It did helped me in doing steps like reparametrise and grafting which I wasn't doing earlier. After doing this issue happened with the last point that I am picking. Attaching the files.