When I open a new file and start typing, the visual line representing the cursor starts moving further away from the place where it is actually located. I can click somewhere and the line will move there, but when I start typing it is offset again.
[Here's a Screen recording that shows the issue](https://giant.gfycat.com/FragrantGlitteringLeech.webm)
I'm using Arch Linux with xfce 4.14pre2 and the Mate-dark GTK theme, in case any of that matters.