My iPad3 (running 6.1) displays "All apps are up to date" when I go to the updates section of the app store app. It's been like that for a couple of days. I know for sure that they're definitely not up-to-date, as there were about 3 updates displayed just before this occurred (also, the badge displays 7 as of today). I tried pretty much everything - reboot, respring, shutdown, app store logout, app store login with another ID, etc. I searched the net for similar issues, but they were all related to issues on Apple's servers side (iPhone running 7.something seems fine, though). Is there anything else I can do to fix this (like deleting some stuck cache file or something)?