While editing a coaster, changing the angle or adding a part causes the camera to follow the direction of the new part for 1 second, then the camera jerks back to the position it was in 1 second prior.
I have all of my mods turned off except this one and it happens.. turning this mod off solves the issue.
I'm not sure if you're still working on this mod but I'd really appreciate if you could look into it!