Hi one thing that is strange! it that when I send from the share option in ideas. My files open up on Illustrator CC 2014 which is on my Creative Cloud but I can't get it to install on my MAC where I have Illustrator CC. Maybe if you upgraded to CC 2014 it might work for you. It doesn't work on my CC just the CC 2014. I also have sync problems and have spoken to somebody at Adobe before but I feel another phone call coming on! Let me know how you get on.
Charlotte