Neal Fletcher

I'm animating some text on a path back and forth, quite a simple animation but occasionally the type keeps jumping and glitching. If you watch the demo on codepen you'll see some letters, quite randomly and sporadically jump or flip over. You might have to watch it a few times as some times it happens more than others – I can't seem to figure out why it's happening or find a fix, any ideas or help on this would be massively appreciated!