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> Uncaught TypeError: Failed to execute 'shaderSource' on 'WebGL2RenderingContext': parameter 1 is not of type 'WebGLShader'.

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I had this on my machine the other day (while developing with Plotly in webGL mode).

A proper restart fixed it. Happened after installing some system updates, so if you’re on a Ubuntu (or downstream) distro maybe give that a shot. I think something just got left in a bad state post-update.

Restarting seemed to fix it.

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