Question Post-Processing Spline : Bounds

Hi!
I'm trying to make some sort of selectable "Color Splash" effect through the Color Grading module's "HuevsSatCurve" curve graph.

However, I'm a bit stumped as to an error I get regarding the bounds when creating new Spline objects.
As there is no information in the API on the expected values of "bounds", or any examples, I'm getting a constant error on every frame :

Code (CSharp):

1. IndexOutOfRangeException: Index was outside the bounds of the array.
2. UnityEngine.Rendering.PostProcessing.Spline.Cache (System.Int32 frame) (at Library/PackageCache/com.unity.postprocessing@3.1.1/PostProcessing/Runtime/Utils/Spline.cs:95)

Here's an example of my code in its most simplified form :

Code (CSharp):

1. void changeCurve()
2.     {
3.         switch (selectedColor)
4.         {
5.             case 0:
6.                 upcomingValue = new Spline(animationCurves[0], 0.5f, true, new Vector2(0.0f,1.0f))  ;
7.                 break;
8.             case 1:
9.                 upcomingValue = new Spline(animationCurves[1], 0.5f, true, new Vector2(0.0f, 1.0f));
10.                 break;
11.             default:
12.                 break;
13.  
14.         }
15.  
16.     }

What should I put in this "bound" argument section? It asks for a Vector2, but should I put the expected values on the curve? Something else?

EDIT : I am now getting another error :

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. UnityEngine.Rendering.PostProcessing.ColorGradingRenderer.GetCurveTexture (System.Boolean hdr) (at Library/PackageCache/com.unity.postprocessing@3.1.1/PostProcessing/Runtime/Effects/ColorGrading.cs:767)
3. UnityEngine.Rendering.PostProcessing.ColorGradingRenderer.RenderHDRPipeline3D (UnityEngine.Rendering.PostProcessing.PostProcessRenderContext context) (at Library/PackageCache/com.unity.postprocessing@3.1.1/PostProcessing/Runtime/Effects/ColorGrading.cs:507)

EDIT #2 : Found the issue, somehow my GUI was trying to calculate a Spline that didn't exist. I called my function and it's all good now.