Why can't I see my latest photos when I try to add a picture to facebook? I just imported a bunch of photos from my iphone 6 to my mac book and I have migrated to the new Photos app.  When I go into the Photos app, I do see these pictures that have been imported but when I go to another app (like facebook) and try to add a photo to a post, I go into Media => Photos and none of the newly uploaded photos are showing up. 

I am not sure if this is related to migrating from IPhoto to Photos on the mac but any suggestion or explanations on what could be going wrong here?
After rebooting, the pictures showed up