Yes! It's absolutely maddening. I've spent untold hours trouble-shooting video card drivers, Photoshop preferences, Uninstall then re-install PS, turning "Use Graphics Processor" on and off, re-starting untold times. I thought this might be fixed by 19.1.1 but no luck. I can't tell if this is a failing GPU or a Photoshop bug but after the trouble-shooting I'm leaning to the latter. Symptoms: Crawling ant selections disappear after making the selection, all changes to any layer doesn't refresh the canvas image OR the thumbnail until I re-size the screen image (zoom in or out). Pasting some layers don't immediately show up. — With Photoshop open many other software expecially Safari come to a crawl. (Photoshop is set to use 70% available memory and system memory still has 2-3 GB left) I am also on a MBP. (Mid 2012 Retina with GeForce GT 650M and Intel HD Graphics 4000 1536 MB) Switching between the cards makes no difference (nVidia Web Driver vs. Default MacOS driver). If it's not the hardware it has to be software. Really looking for some help, Adobe. My work has come to a complete halt. I'll do any tests, trouble-shooting or whatever to get back up. Thx ===== This is a list of what I have done in addition to what is mentioned above: —Ran a full TechToolPro Hardware test including video memory - Passed —Started in Internet Recovery Mode and ran the hardware test - Passed —Updated the nVidia drivers twice. Installed the nVidia Web Driver and used it in both web driver and MacOS default driver mode. —Trashed Photoshop prefs, uninstalled Photoshop CC 2108, reinstalled Photoshop twice. There have been two version updates during this issue. -- Also checked the Apple Service and Support database using my serial number to see if this was one of the bad video cards- no mention of video card even though it is a mid 2012 MBP
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