I have the newest version of OS X 10.10.4 running on my Mac. I cannot import any photos from the OS X Photo App in InDesign. Import from other folders or devices work perfectly. There is only a problem with InDesign, Illustrator or Photoshop work fine. InDesign Version is 8.1
It works in InDesign CC 2014 and 2015 with Mac OS X 10.10.4.
I'm afraid you're running into an inevitable problem: You're using InDesign CS6 which will never be upgraded. At some point, it cannot keep up with updates to the Mac OS X operating system. I think you've found such a problem.