I AM NO K2 SPECIALIST, this is just food for thought , BUT I see alot of post about the items not showing up after upgrade to 2. 7, well 1. MAKE SURE YOU GOT A BACK-UP (RECENT AS POSSIBLE ) BEFORE UPGRADE!!! before you brush your teeth backup before the upgrade! 2. I do not NOT think the issue of items NOT showing up is in your DATA base. Don't start screwwwwwwing with that DATA BASE, until a last resort, .... 3. I THINK, k2 2.7 was made to run with Joomla 3.5 which is a big Joomla upgrade!, Lots of changes ( I am ONLY giving advise for JOOMLA 3.5 , OK, ( unless I am wrong, and I have been many times) so ya gotta think about that. Second, no I mean 4th, or 5th, ....turning The REDIRCT Plug-in Off and then On can have an effect on the items an k2 as a whole in any upgrade or any installatin of K2, just switching it the redirect plugin off, then on can make it function, or upload with REDIRECT Off, then switch it on, (Joomla plugin with all joomla), do it from the plug in section, clear cashe, then upgrade .... JUST A FEW IDEAS