Photoshop CC 2015 Update - White Base & Highlight Issue & Fix
Example of separation where the highlight white is damaged and is covering just about everything.
The separation above was run using a freshly updated and installed copy of Photoshop CC 2015 affected by the bug. This is the update which adds the new Start Workspace interface to Photoshop when no documents are open. (See below)
When running separations with UltraSeps using Photoshop CC 2015 and possibly future versions yet to be released, some of the white underbase and highlight white channels may not render correctly.
This is a bug with CC 2015 and may also be an issue with versions going forward.
Running our Repair CC 2015 Action resolves this abnormality and after doing so, all separations will render correctly. Its important to note that if ever resetting the Preferences due to some other issue, this Action will need to be run again.