I noticed that a complex model can cause the engine to fail. The simpler the model, the more chance on a successful render.

I would guess the problem is that you don't have an NVIDIA graphics card. You could check the system requirements to see if this is necessary. Regards, Paul

Hi, everything is working fine when in Low VRAM mode. Results are very interesting so far and render times are decent (about 1 minute).

You should extract the AI visualizer to the AC27 folder and sd.webui to C:

I unzipped it with WinRar without any issues. But it's a ton of data, so it's tricky. Good luck!