I have something like

...
this.propsTexture = this._createPropsTexture(size);
this.offsetTexture = this._createPropsTexture(size);
...
private _createPropsTexture(size: number) {
    return new DataTexture(
      new Uint8Array(size * size * 4),
      size,
      size,
      ...DEFAULT_PARAMS
    );
  }

If i were to log this i get what i expect.

Elsewhere:

this._offsetsTexture.image.data[i4 + 1] = 5 // THIS WORKS!!!!

However, if i follow up with exactly this:

console.log("props image", this._propsTexture.image);
console.log("offset image", this._offsetsTexture.image);
const debug = this._offsetTexture.image.data[i4 + 1]; // line 136 that throws
console.log("data array values", debug);

The first two logs to .image yield what i expect, size of 1024 and a typed array. The line 136 that fails is this attempt to read from the array:

If i put a breakpoint, and hover over the .image at line 163 i see this:

I am quite baffled, why am i seeing data:null here? Line right above it logs it as being Uint8Array.