If you are having trouble with an issue after a recent release you may need to clear your cache. Here is a step by step guide to clearing cache for google chrome browser.
On your computer, open Chrome.
At the top right, click More .
Click More tools Clear browsing data.
At the top, choose a time range. To delete everything, select All time.
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.
If you use Safari, Firefox, or another browser, check its support site for instructions.