SDXL base (1024, MacOS) [4.5 bit] has pipeline loading error

Hey guys,

First off, thanks for this great app! I just installed it from the MacOS store.

I am hitting an issue with running the "SDXL base (1024, MacOS) [4.5 bit]" model. The model downloads but the Error is "pipeline loading error".

Under advanced I tried: GPU, Neural Engine, and "GPU and Neural Engine". All did not work.

The base SD model works fine, as does "SDXL base (1024, MacOS)". But I really want to test the 4.5 bit model per this article which mentions this tool.
https://huggingface.co/blog/stable-diffusion-xl-coreml

Config:
-Macbook Pro 14-inch Nov 2023
-M3 Max
- 48GB Memory
- MacOS Sonoma 14.6.1