Does Not Work in Forge - Works Fine in A1111

[King-Khufu]

I've done fresh reinstalls of both Forge and Ultimate Upscale. I've scoured the internet, and I cannot find any solution to my issue.

Ultimate SD Upscale refuses to work in Forge, full stop. The script simply does not activate, it just does a regular IMG2IMG generation (which can be confirmed by running a gen twice, once with the script active, once without, resulting in two identical images being produced). Before you ask, yes, "Upscaled" is selected in the script menu.

The extension works perfectly fine in A1111, but Forge is my main UI, as I use ControlNet Inpaint (Fooocus) heavily which doesn't work in A1111, so I'd really like to figure out how to get it to work in Forge.