Digital photography

The camera is an EPM2 that I bought new within the last six months or so, the lens is the Olympus 17mm 1.8.
I looked into it a little more and found that it might be a problem with iphoto.
This is a new thing to me, only started with this trip, about 10 days ago.
The pics loaded up fine, the editing went fine, the sending to dropbox and transferring to usb stick went fine.
I noticed the problem yesterday for the first time.

So not visible on back of camera or when uploaded to computer at first?

If so then definitely a software issue.