I got a new phone about a month ago (Sony xperia), and TomTom MySports app worked perfectly for a couple of weeks, and then suddenly it stopped working: most of the times it crashes or closes immediately after starting. Actually it is the GUI that crashes I think, the app is still in my phone's "recent items" list, from where I can re-open it, but it closes soon after. I have uninstalled and re-installed the app several times, and cleared data etc., and the app works correctly only once after each installation so that I have been able to upload my activity. On subsequent attempts it crashes again. On some occasions I see briefly a window that asks me to report the problem, but it flashes so quickly that I can't see what the other options are. On other times when the app does not close immediately, it is mostly unresponsive.
Any ideas what is causing this? I have not updated anything, but there might have been some automatic phone updates from Sony that is causing this.