After the update (from 08.09.2016) through githab appeared bug: after downloading files on the server are downloaded empty pictures (check Tiff, jpg, png) with a file size of 0 Kb, as well as the empty image files and come to the post office, in the form as they do not open. Before that there was a problem with the automatic preview when loading images. Now this is not a problem, but there was a problem described above. How can I fix this problem? Very important!!!