We have the fix available in the latest release. Please update Illustrator using Adobe Creative Cloud application to the latest build for version Illustrator CC 23.0.
Please refer to our knowledge base FAQ – https://illustrator.uservoice.com/knowledgebase/articles/1844590 if you face difficulty in update.
Or get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html
Ashutosh Chaturvedi | Sr. Quality Engineering Manager – Illustrator
Adobe. Make It an Experience.Richard supported this idea ·Richard commented
Application frame bug.
If you turn off application frame, and then create a new document, the new document window is unusable, its either completely black or (in my case completely red). If you then turn the application frame back on, the view refreshes and you can see your Pasteboard and Canvas.
This is suing the latest version of Illustrator and is easily reproducible on different mac's running the latest version of High Sierra (10.13.4)
Screenshot attached of the issue