We are happy to announce the release of Photoshop CC 20.0.1
This update includes fixes to some of the top customer reported issues among other bug fixes.
To update Photoshop CC to 20.0.1, click "Update" in the Creative Cloud desktop app next to Photoshop CC. More detailed instructions for updating
I have been using the legacy rendering engine for the past few weeks and I am no longer having these problems:
Preferences > Performance > [X] Legacy Compositing
This works for my '17 MB Pro's Radeon 560 but some of our PC's graphics cards do not have graphics processor settings in this panel; so we rolled them back to earlier photoshop.