Broken Models when CONTENT_PATH endpoint set to Classic or TBC version

First of all, thanks for this beautiful project!

Up until this week or 2 weeks ago, it was working for all content, but now when changing

CONTENT_PATH from https://wow.zamimg.com/modelviewer/live/ to https://wow.zamimg.com/modelviewer/classic/ or https://wow.zamimg.com/modelviewer/tbc/ and possibly wotlk when released it it doesn't load character textures and starts giving the following error on console repeatedly;

Uncaught TypeError: undefined has no properties viewer.min.js:2:187352
Uncaught TypeError: n is undefined
    bN https://wow.zamimg.com/modelviewer/live/viewer/viewer.min.js:2
    cc https://wow.zamimg.com/modelviewer/live/viewer/viewer.min.js:2
    ce https://wow.zamimg.com/modelviewer/live/viewer/viewer.min.js:2
    draw https://wow.zamimg.com/modelviewer/live/viewer/viewer.min.js:2
    t https://wow.zamimg.com/modelviewer/live/viewer/viewer.min.js:2
    .
    .
    .
viewer.min.js:2:187352

The problem occurs at const t=n.find((t=>t.TextureType==f)); part and When de-minifying the code, at line 6684; const t = n.find((t => t.TextureType == f));

Entire block;

const n = this.G.b.Materials,
  a = this.G.b.TextureLayers,
  o = this.G.b.TextureSections;
let l = !0,
  h = !0;
15 != this.o && 21 != this.o || (h = !1), this.y.forEach((t => {
  let e = t.e;
  4 != e && 5 != e && 19 != e || (l = !1), 7 == e && (h = !1)
}));
let u = -1;
if (27 == this.o)
  for (let t of a) 9 == t.BlendMode && 1 == t.TextureType && t.Layer > u && (u = t.Layer);
const c = (f = t => t.TextureType, a.reduce(((t, e) => {
  var i;
  return (t[i = f(e)] || (t[i] = [])).push(e), t
}), {}));
var f;
for (const s in c) {
  const a = c[s],
    f = a[0].TextureType;
  if (!this.aL[s]) {
    const t = n.find((t => t.TextureType == f));
    if (!t) {
      WH.debug("unable to find material info", f);
      continue
    }
    this.aL[s] = new wo(this.aT.context, t.Width, t.Height)
  }

Steps to reproduce;

Change const CONTENT_PATH to either https://wow.zamimg.com/modelviewer/classic/ or https://wow.zamimg.com/modelviewer/tbc/

Miorey / wow-model-viewer

Broken Models when CONTENT_PATH endpoint set to Classic or TBC version #20