Hi, 1. Linear splines consist only of samples at the positions of the control points. If you use Uniform samples, the spline will try to give you the same number of samples but positioned at even distances. Your only solution to have a uniform linear spline is to use the Distribute Evenly operation. 2. What is your Unity version and can you tell me the steps that you are exactly taking to reproduce this issue? 3. This is a known issue and we have been trying to collect information from people who have reported it. However, up to this point nobody has reported back what they are doing when this is happening and when customers have sent us scene files with their setup, the values are stable when we open it. 4. Noted. We will think of improving the UX in future. I'm also not a big fan of this design decision currently.