I bought a MBA 13" 256GB on Thanksgiving weekend to replace my 2010 MBP. Yesterday I updated to 10.12 and now Pages, Keynote & Numbers are gone with large question marks now replacing them on the dock where they used to be before the 10.12 update. My Microsoft Office products (Word, Excel & Powerpoint) from my 2010 MBP are still on my MBA after the 10.12 update but Apple's software isn't?? Where did they go? More importantly, how do I get the software back?