I am just bumping because this issue is still around on macOS 14.3, and I really need a solution, 1.5-6 gb memory wasted each time a model is changed makes diffusion models impractical, but as OP said, this worked fine on macOS 13

47 is just fine, it is a short piece of json. The app sending the json works with other software, and other json apps work with my software. I can't find out what is allowing one and not the other.