That's odd! Does this happen on different browsers as well as in Incognito mode? Also, try clearing your browser's cache and cookies, here's how: https://goo.gl/dwzcyo . Keep us posted.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
That's odd! Does this happen on different browsers as well as in Incognito mode? Also, try clearing your browser's cache and cookies, here's how: https://goo.gl/dwzcyo . Keep us posted.