Probuilder on WebGL NullReferenceException for simple GeneratePlane

Hi all

Building project for WebGL, webpage crashes when creating a mesh with Probuilder at runtime. I'm finding this will crash it:

Code (CSharp):

1. ProBuilderMesh _box;
2.     // Start is called before the first frame update
3.     void Start()
4.     {
5.         _box = ShapeGenerator.GeneratePlane(PivotLocation.Center, 0.6f, 0.2f, 0, 0, Axis.Forward);
6.     }

browser console debug output:

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object.

It runs fine on editor.

I've logged a bug report.

Does anyone have any suggestions to work around this?

Tested on Unity 2019.3.0f3, probuilder 4.2.1, URP 7.1.6, latest version chrome and firefox.

Thanks a bunch for your thoughts

 

Ignore, solved in 4.3.0prev1, tripped twice on this one!
im so ready for the weekend!