[kaptain]

Hi Tom & Admin

Several times I encountered issues with document uploading (to the Document section). 
I worked around that by posting large-size files to dropbox instead.

Since you had mentioned that you have increased the size limit on uploads and we still encounter the same issue. This is a problem you might want to look into further.

See below, both unzipped PDF and zipped files failed to upload, the file sizes and error messages are shown in the picture.