I had a similar issue. I loaded a jpg image in Photo, did some canvas resize, then zoomed in - Photo crashed. Killed the app using Task Manager and tried once more - same issue. Third time, and goind forward, Photo wouldn't even load any images - just got a little information in the upper right corner saying loading 1 image. Photo didn't crash, but was stuck loading the image. Had to kill the application again using Task Manager.
I disabled OpenCL as suggested here, and now Photo seems to be working normal again.
