Spline WayPoints in 3.1.5

I just upgraded to 3.1.5 and I have a mission plan that I have used over and over again.
After trying this mission I noticed that it was not flying straight from each way point. I checked the mission plan and spline was not checked.
In the logs how do I see if spline is on?

I’m not sure 3.1.5 supports spline, I think its is in the newer beta 3.2 versions.

I believe you are correct. Spline waypoints do not work in 3.1.5.
However it looks like way points are more rounded than they were in 3.1.4.