When the cropping preview is active and I zoom (cmd+ ; cmd- ; cmd 1; cmd 0), I get the following alert:
"Could not complete the Zoom (...) command because of a program error."
...and the preview glitches (screenshot below).
Photoshop CC
2014.0.0 Release
Updated today, June 19th
Mac Pro Late 2013
OS X 10.9.3
AMD FirePro D300 2048 MB 