Repro:
1. On Microsoft Edge on latest version of Windows, Go to http://www.geocaching.com/account/dashboard
2. Under Latest Activity, see that "Yours" is selected. Try to click the carat to display other options. Does not work.
3. On Firefox, go to http://www.geocaching.com/account/dashboard
4. Under Latest Activity, see that "Yours" is selected. Click the carat and switch between Yours, Community, Your Hides. >>> It Works.
Expect: functionality to be consistent across browsers