In my system Spiral, linked here: https://exploitzeroday.com/system/1rzLKg/, I had attempted to add more yellow and blue nodes than you currently see, in order to fill in the empty space. Once the count got to about 40, the white and gray lines that are supposed to go from yellow or blue node to whatever they turn on/off turned a darker gray/black and started going diagonally and fading into apparent nonexistence.
I have recently been reading through older forum posts, and I noticed that @Bored5555 had encountered the same problem about 6 months ago in this post: https://forum.exploitzeroday.com/t/testing-for-graphical-and-other-related-bugs/379. I was wondering if this was still on your list of problems to fix, and if there was a temporary fix that could allow me to modify my system as soon as possible to make it as I had envisioned it to be.
Also, a sidenote: If anybody has any suggestions on how to improve the system, I would greatly appreciate any constructive criticism made available to me.