As for the AI converter not working for so many people… to run AI models like this offline, you need a powerful GPU. It needs at the very least a dedicated GPU, it certainly can’t be run on an integrated GPU like Intel. If you don’t have at least an NVIDIA GeForce 20XX series GPU (or equivalent), don’t even bother trying to use offline AI converters like this. At best, conversions will take forever for you if you try anyway, and at worst, will fail outright.
I’ve got a GeForce 2070 and the AI conversion works seamlessly.