Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Google + IOS Update Brings Full Resolution Image Uploads , Search And New Icon –
Google have just released version 184.108.40.20640 of the Google + app. The updates brings a few more need features which you would expect in any web browser. The main new features added are you can now upload full resolution images from your IOS Device this is a long need feature as + seems to have taken of with photographers swell as being able to upload full res images you can now also +1 photos from your device . This is another feature which should have been included from launch , Search. The feature will allow you to search the web from inside the app which you could not do before , yes a Google app with out search. You can pick this up from the app store as a free update and check out there newly replaced icon.