Bad type: UNSIGNED_INT with home-made PNTS file

[PissedCapslock]

When trying to load the attached PNTS data in the Cesium Sandcastle app (http://localhost:8080/Apps/Sandcastle/index.html), I get the following warnings on the console (both in Chrome and Firefox):

WebGL warning: vertexAttribPointer: Bad `type`: UNSIGNED_INT

I have generated this PNTS file myself, and there is obviously something wrong with it. Problem is that I have no clue what exactly.

I tried running the validator on that file, but I don't get any output with the validator (nor any error messages).

Seeing as the message complains about UNSIGNED_INT, I would assume something is wrong with the BATCH_ID as that is the only UNSIGNED_INT I am using. But according to the spec, an UNSIGNED_INT is allowed:

The BATCH_ID semantic may have a componentType of UNSIGNED_BYTE, UNSIGNED_SHORT, or UNSIGNED_INT

Do you have any pointers how I can figure out what is wrong with my PNTS file ? Is there perhaps another validator I can use that outputs clear error messages ?

Note: I kept the file deliberately very small to make it easier to debug it.

pnts.zip

[lilleyse]

Thanks @PissedCapslock, it was a Cesium bug. See CesiumGS/cesium#6666.

[PissedCapslock]

A bug which you already fixed. Awesome !