Sierra and Older Eizo CG Monitors Compatibility Issue
If you happen to have an older Eizo CG model, i.e.:
CG303W, CG301W, CG243W, CG242W, CG241W, CG232W, CG223W, CG222W, CG221, CG220, CG211, CG210
...then please be aware you may see issues if you have installed the latest Sierra (10.12.4) on your Mac. This will manifest itself as garish colours post calibration.
A workaround and details are available here.
(This is just one in an incredibly long line of colour management issues on the Mac caused by Apple, and hopefully like most of them Apple will limp in with a fix for this in a few months).
