I just did my first csv import after upgrading and it failed. The log report returned this error: "ERROR 2018/05/07 - 11:13:44: Not a JPEG file: starts with 0x3c 0x21 `/.../.../.../.../store/img/p/8/0/3/7/8037.jpg' @ error/jpeg.c/JPEGErrorHandler/322 at line 94 in file override/classes/ImageManager.php" When I removed the image url from the csv file the upload went through fine and then I manually added the photos in the back office with no problems. Any ideas?