I'm getting extremely strange results in Photoshop CC (2014.2.2 release). After switching a few times between programs back to Photoshop I get the following artefacts. Only remedy seems to be restarting Photoshop. Even stranger, saving the current file in a JPG will even save the artefacts to the file.
Couldn't find any related problems by good ol' fashioned Googling. Could this be a Photoshop bug or maybe even a damaged CPU?
Edit: Here is a animation showing how this affects in practice.