It's fixed here https://mbuliga.github.io/feed-the-quine.html by adding an extremely short fade-in, but I think there might be a way to have the nodes simply appear where they're supposed to be.
Agree! Incidentally an interesting unexpected visual effect if you comment line 232 duration(1) and you uncomment/replace it by delay(1) or even delay(5).
It's fixed here https://mbuliga.github.io/feed-the-quine.html by adding an extremely short fade-in, but I think there might be a way to have the nodes simply appear where they're supposed to be.