I eventually fixed this by using pip3 to install scdl, which is kind of annoying because I like bleeding edge. If I weren't afraid of rendering my computer un-bootable as a consequence of screwing ...

Cannot import K:\50-test\ComfyUI\custom_nodes\ComfyUI-Step1X-Edit module for custom nodes: invalid syntax (step1xeditnode.py, line 21) Collecting liger_kernel==0.5.4 Using cached ...