the html file can be imported into twine's default editor via the "import from file" option, which should give you access to the "Edit Story Javascript" and "Edit Story Stylesheet" options when clicking on the story name (and not floating around with the other special passages like StoryInterface etc). not sure if this is the case, but if you're creating new passages manually and naming them story javascript or stylesheet i don't think those get combined without the use of tweego to compile them. i'm not sure what else might be causing this issue though without more info on how it looks, feel free to dm me on twitter or tumblr if this continues to be a problem !