"Uncaught TypeError: t._inputs[r.a.Keyboard] is undef" for preview.babylonjs.com

Bugs
7

Thanks, the problem was found and fixed already - Fix for undefined value on keyup event by PolygonalSun · Pull Request #9801 · BabylonJS/Babylon.js (github.com). There is a small issue with the .key value which will be fixed as soon as we can.