Hi Sarah, I had this exact same issue earlier this week - after days trawling the Adobe site for fixes, trying clean installs of CC Desktop & InDesign etc, I had a support chat with which ended up with them remotely accessing my mac and deleting a whole load of files ... apparently there was something corrupt in the Adobe CoreSync and various other Library items, but they fixed it and within half an hour it was working perfectly, thank goodness ... might be worth a try - hope it helps.
Hi Sarah, I had this exact same issue earlier this week - after days trawling the Adobe site for fixes, trying clean installs of CC Desktop & InDesign etc, I had a support chat with which ended up with them remotely accessing my mac and deleting a whole load of files ... apparently there was something corrupt in the Adobe CoreSync and various other Library items, but they fixed it and within half an hour it was working perfectly, thank goodness ... might be worth a try - hope it helps.