Marvin JS Problems Troubleshooting and Support > Assignment Problems Some problems have been reported in specific situations when you are using the Marvin JS tool in WebAssign. Marvin JS Answer Looks Correct But Marked IncorrectSometimes a Marvin JS answer that looks like the answer key is marked wrong. Marvin JS Drawings Scaled UpMarvin JS drawings with a small chemical structure — for example, a single atom or small molecule such as water — are displayed larger than users might expect. Marvin JS Toolbar Buttons Hidden on iPadFor some Marvin JS questions, the toolbar is wider or taller than the Marvin JS frame. If this happens, scroll buttons are displayed at the end of the toolbar. However, in older versions of the Safari® browser, these scroll buttons do not work. WebAssign can't grade Marvin JS questions right nowRarely, WebAssign can't contact the server that grades Marvin JS questions. When this happens, the message WebAssign can't grade Marvin JS questions right now is displayed. More information Marvin JS Questions