Cinemachine Track straight line movement not working

Hi there!

I'm using the Cinemachine track and cart system to control the forward movement of both my player and camera in an on rails space shooter. There are times I want this to be a straight line between points, so I have the resolution set to 0, and the track does indeed show straight lines - however; when I run the game the player and camera snap and move on a curved path as if the resolution were still set to the default 20; I've checked in the cinemachine script and there's nothing I can see initialising resolution or anything.

Any help would be much appreciated!

Thanks :D