Procedural mesh AABB error on OSX

Hi there, I've been having a lot of trouble solving an error I've been getting during runtime. When the function I've made called BuildBezierPlane() is called once, the editor will spit out the errors:

• Invalid AABB aabb

• Invalid AABB result

• Invalid AABB a

• Assertion failed on expression: 'IsFinite(outDistanceForSort)'

if it is called more than once, it will not return any errors, but it will skip the first mesh generated by this function. If a different function that also builds a mesh in the same way is called at the same time instead of this one, it will build fine.

This snippet of code will generate a quad perfectly if called instead of BuildBezierPlane: protected void BuildQuad(MeshBuilder meshBuilder, Vector3 offset, float width, float length) { meshBuilder.Vertices.Add(new Vector3(0.0f, 0.0f, 0.0f) + offset); meshBuilder.UVs.Add(new Vector2(0.0f, 0.0f)); meshBuilder.Normals.Add(Vector3.up);

     meshBuilder.Vertices.Add(new Vector3(0.0f, 0.0f, length) + offset);
     meshBuilder.UVs.Add(new Vector2(0.0f, 1.0f));
     meshBuilder.Normals.Add(Vector3.up);

     meshBuilder.Vertices.Add(new Vector3(width, 0.0f, length) + offset);
     meshBuilder.UVs.Add(new Vector2(1.0f, 1.0f));
     meshBuilder.Normals.Add(Vector3.up);

     meshBuilder.Vertices.Add(new Vector3(width, 0.0f, 0.0f) + offset);
     meshBuilder.UVs.Add(new Vector2(1.0f, 0.0f));
     meshBuilder.Normals.Add(Vector3.up);
     int baseIndex = meshBuilder.Vertices.Count - 4;

     meshBuilder.AddTriangle(baseIndex, baseIndex + 1, baseIndex + 2);
     meshBuilder.AddTriangle(baseIndex, baseIndex + 2, baseIndex + 3);
 }

This snippet here will return errors if called only once:

 public void BuildBezierPlane(MeshBuilder meshBuilder, Curve top, Curve bottom, Curve right, Curve left)
 {
     int baseCount = meshBuilder.Vertices.Count;
     int width = bottom.Positions.Count;
     int height = left.Positions.Count;

     if (height > 1 && width > 1)
     {
         for (int y = 0; y < height; y++)
         {
             for (int x = 0; x < width; x++)
             {
                 float t = y / (height - 1.0f);
                 Vector3 p0 = bottom.Positions[x];
                 Vector3 p1 = Vector3.Lerp(left.Positions[width / 2], right.Positions[width / 2], y / (height - 1.0f));
                 Vector3 p2 = top.Positions[x];

                 Vector3 position = (1.0f - t) * (1.0f - t) * p0 + 2.0f * (1.0f - t) * t * p1 + t * t * p2;
                 position = new Vector3(x, y, 1);
                 meshBuilder.Vertices.Add(position);
                 Debug.Log("Positions: " + p0 + p1 + p2);
                 meshBuilder.UVs.Add(new Vector2(x / (width - 1.0f), y / (height - 1.0f)));
             }
         }

         for (int ti = 0, vi = 0, y = 0; y < height; y++, vi++)
         {
             for (int x = 0; x < width; x++, ti += 6, vi++)
             {
                 meshBuilder.AddTriangle(vi, vi + width + 1, vi + 1);
                 meshBuilder.AddTriangle(vi + 1, vi + width + 1, vi + width + 2);

             }
         }
     }
     else
     {
         return;
     }
 }

I've employed many fixes already suggested by the unity community on reddit and game development circles, but none of them have worked. Could this be a mac osx Mojave specific problem?