Code:
Unable to convert GUI point to world ray if a camera has not been set up!
UnityEditor.HandleUtility:GUIPointToWorldRay(Vector2)
CurvySplineSegmentInspector:InsBefore() (at Assets/Curvy/Editor/CurvySplineSegmentInspector.cs:492)
CurvySplineSegmentInspector:DoWin(Int32) (at Assets/Curvy/Editor/CurvySplineSegmentInspector.cs:420)
UnityEditor.DockArea:OnGUI()I get this error when using Ins Before and After, on the first and final spline segment respectively.
I'm not sure what the intended behaviour in those cases is, but extrapolating out in the direction of the tangent (?) seems like it'd be reasonable.
Also looking forward to the undo bug and warnings being fixed!
e:
Forgot to mention, this is only the case with an open spline. Closed splines don't suffer from it.