This is just an FYI about Sierra 10.12.5
[Moderator moved from the non-technical Lounge to Creative Cloud.]
This is for anyone with a iMac (Retina 4K, 21.5-inch, Late 2015) who is having troubles with macOS Sierra version 10.12.5 and using Illustrator 2017 CC and PhotoShop 2017 CC. I had to first install macOS Sierra Version 10.12.5 then reinstall PhotoShop and Illustrator 2017CC and any other Adobe products that are having trouble after installing 10.12.5 MacOS Sierra. Hope this helps someone. It's not the most elegant solution but it worked for me.
