Setup a project: First, you need to create a new project in Flux. Navigate to the homepage, tap on "Create New" and give a descriptive name for your project. This will open up the Flux editor where you can start designing your circuit.

Create/Import schematics: You can either import an existing schematic in Flux or create a new one. You can draw symbols and lines to represent components and connections in your circuit respectively.

Add components: Drag and drop components from the component library onto the canvas. Adjust the position of components by dragging them around and add connections by drawing wires between the connection points.

Layout PCBs: Once you're happy with your schematic, you can advance to the layout stage. Here you transfer your design from schematic to a physical PCB layout. Adjust the size and shape of your board using the board outline tool, and place your components according to your schematic, ensuring that everything fits on the board.

Route connections: Once your components are placed, you need to route the connections between them. Automatic and manual routing options are available depending on your requirements.

Export the design: Once everything is done, you can preview and export your design in various formats for manufacturing purposes.

Browser Check: Ensure you are using a supported browser. Flux was designed for compatibility with major modern web browsers such as Google Chrome, Firefox, and Safari.

Page Reload: Try reloading your browser page. This could solve temporary issues related to page loading.

Software Versions: Certain browser extensions or outdated browser versions can interfere with Flux's performance. Make sure your browser is up-to-date and try disabling extensions if possible.

Lock State: Confirm if the component you are trying to move is not locked. Locked components can't be moved.

Selection: Ensure you have correctly selected the component before dragging.