In Example Scene, click a Polyline, return errors in console

Shapes asked me to report this bug =))
Below are errors thrown in console:

Shader Compiler Socket Exception: Terminating shader compiler process

Shader compiler: Compile Shapes/Polyline 2D Transparent - Selection, Vertex Program: Internal error communicating with the shader compiler process. Please report a bug including this shader and the editor log.

Shader error in 'Shapes/Polyline 2D Transparent': Internal error communicating with the shader compiler process. Please report a bug including this shader and the editor log.

Unity 2019.4LTS, Shapes 1.1. Download directly from Git and copy paste into Unity, put in "Standard Assets" folder