I'm surprised no one is reporting Adobe CS5 issues. Sierra requires Java update which is incompatible with all CS5 applications (and CS6 too, I believe). I had to restore back to El Capitan to avoid moving to Adobe's expensive Creative Cloud offering. I spoke with Adobe and Apple support about they could not help. There is no way to downgrade Java in Sierra. Apple told me to wait for Adobe to fix. Adobe simply told me to bust out my wallet for Creative Cloud.