Please check the zoom level of your browser and make sure the zoom is 100% or higher. Most browsers allow you to reset the zoom level to 100% by clicking Control (or Command) and 0 (zero) or normally, this may be visible to the right of the URL bar, or through the “View” section of your browser.
If the issue persists, report the bug directly from the Dashboard, attaching screenshots and let us know that you have already tried the steps suggested here.