Here is a playground where I fixed it - not but made it worse: https://playground.babylonjs.com/#B1HHGV#9 
RangeError: Offset is outside the bounds of the DataView at DataView.prototype.getFloat32
I remember this one. Could it be related to this? There, I also ran into the “DataView” error with makeGeometryUnique. But it was fixed!
…Ohh, I have just noticed. If you look at the fix 1 post below, that playground is broken now too. The red box should not be this big :o