I updated CC on Thursday, 2/11 at 2:37 pm. At approx. 4 pm I went into Lightroom and it advised that it could not find the files containing all of my photos (330+GB). I checked the hard drive, and the folder containing these files was empty. I went back to Time Machine and copied the files back in - which took over two hours. I checked my hard drive before retiring for the night, and the folder was intact. However, when I checked again the following day, the folder was once again empty. I was advised by others on Facebook that there are people experiencing a similar problem with the latest version of CC. The contents of the first file on the hard drive gets deleted. Today I restored my hard drive from Time Machine back to 2/9 - before the issue arose. But this is something you - and all CC users - should be aware of. This is a SERIOUS issue! Fortunately for me I had a backup (multiple back-ups, in fact). But I am now "gun-shy" about using CC. Any comments?