Grrr - eetings all,
I have found what appears to be a bug when uploading a zip file of images. My zip file contains a number of 2 color gifs which range around the 2K each size. The "correct" number of images upload but there are a number of copies of the same image, and a number with "Name this content" rather than their filename. Interestingly the file has a pack ratio of 103%, ie it is bigger as a zip file than the 46 images.
I have put the zip file here
to see if you get the same error.