Dreamweaver and SASS processing buggy?

(@staff who haven't been using this, please refrain from giving me standard questions as answers, like "Can you post your code?", "Which operating system are you using?" or "Have you tried using compass?")

For us to be able to help you, you need to give us all of the relevant information without us having to rummage around.

The information that you have not given us is that the partials as delivered by Bulma do not contain a leading underscore. This would have been evident had you given us a screen-shot of the directory.

Here is a screen-shot of part of my directory

Dreamweaver and other compilers treat the leading underscore as a partial and will not compile those files. The only file that gets compiled into a CSS file is styles.scss.

Having a look at the compilable file, you will notice that there are no leading underscores or file extensions.

/*!
 * Bootstrap v4.0.0-beta (https://getbootstrap.com)
 * Copyright 2011-2017 The Bootstrap Authors
 * Copyright 2011-2017 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */
// Core functions,variables and mixins
@import "bootstrap/functions";
@import "bootstrap/variables";
@import "mystyles/variables";
@import "bootstrap/mixins";
// Reset and dependencies
@import "bootstrap/print";
// Core CSS
@import "bootstrap/reboot";
@import "bootstrap/type";
@import "bootstrap/images";
@import "bootstrap/code";
@import "bootstrap/grid";
@import "bootstrap/tables";
@import "bootstrap/forms";
@import "bootstrap/buttons";
// Components
@import "bootstrap/transitions";
@import "bootstrap/dropdown";
@import "bootstrap/button-group";
@import "bootstrap/input-group";
@import "bootstrap/custom-forms";
@import "bootstrap/nav";
@import "bootstrap/navbar";
@import "bootstrap/card";
@import "bootstrap/breadcrumb";
@import "bootstrap/pagination";
@import "bootstrap/badge";
@import "bootstrap/jumbotron";
@import "bootstrap/alert";
@import "bootstrap/progress";
@import "bootstrap/media";
@import "bootstrap/list-group";
@import "bootstrap/close";
// Components w/ JavaScript
@import "bootstrap/modal";
@import "bootstrap/tooltip";
@import "bootstrap/popover";
@import "bootstrap/carousel";
// Utility classes
@import "bootstrap/utilities";
// Fonts
@import "font-awesome";
@import "glyphicons";
// My Styles
@import "mystyles/mymixins";
@import "mystyles/base";
@import "mystyles/header";
@import "mystyles/main";
@import "mystyles/footer";
@import "mystyles/admin";