autodesk forge – Memory limited extension on SVF2

I am trying to implement the MemoryLimited extension in the Forge viewer per these instructions

But ever since the switch to SVF2, it doesn’t seem like the extension is activating. The progress bar doesn’t turn blue like it used to, and large models frequently crash on mobile browsers. Is the MemoryLimited feature still compatible with SVF2? And if so, how do we activate it?

My options code:

{
    env: "AutodeskProduction2",
    getAccessToken: _this.getForgeToken,
    api: 'streamingV2'
  }

And my config3d:

const config = {
loaderExtensions: { svf: 'Autodesk.MemoryLimited' },
memory: {
    limit: 1024
}