MSN weather for example doesn't update my LS unless I open it, the same with bing as LS.
and weather live tile (blue skies+MSN), MSN news live tiles isupdated
Still not working for me, soft reset, hard reset, uninstall/reinstall, set lock screen again, checked power settings, soft reset, no good. Lock screen isn't displaying any data now, just sunny background. I even changed to a different lock screen for a bit. Guess I'll use a different weather for a while.