I can't open phone number links. For example, if someone text messages me a phone number, or if I look up a place on google maps and it has a number, when I press the link, it opens my contacts and displays the number of the last person I called, but not the number I currently want to call. This means if someone gives me a number or if I want to call a place I found on google, I have to get a pen and paper, write the number down, and then dial it myself. Very annoying. Perhaps similar to the problem when occasionally opening one app opens a different one instead?