If I make a virtual copy of an image and then, with that virtual image selected, switch from the Library to the Develop Module. it causes LR to hang every time. If I make the switch with the original image selected, LR behaves normally
This occurs only with virtual images in the Quick Collection as far as I can ascertain.
I am using Lightroom CC with Windows 7 64 bit. Has anyone else come across this behaviour?
Thanks for the pointer. In fact on attempting to untick the GPU box, LR crashes and on restarting the box is still ticked.
Further research brought me to Adobe's pages showing that a recent AMD GPU driver 'upgrade' was the culprit. I uninstalled the new driver and reverted to the old one which has cured the problem.
Thanks for your helful reply which solved the problem, much appreciated