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Try to disable the GPU.
In the Camera Raw window, press Ctrl+K (Cmd+K on a Mac) to bring up Preferences, then uncheck Use graphics processor.
That didn't work.
I have the same issue, and it started happening after downloading the latest version of CC 2017. Have you found a solution? Downloading the latest graphics card driver did not help. Adjusting the memory usage and cache levels in the preferences menu helped some, but didn't get rid of the issue.
Unchecking the "Use Graphics Processor" box in Camera Raw preferences seems to have helped.