Files are missing when use Multi-file Download

We try to download multiple files using widget Multi-file download. there were some file not downloaded. for example, there are 50 files in the list but only some were downloaded but some were not downloaded. this issue happened when use Chrome and no any issue when use IE. but IE asked [Save/open] confirmation for each file. could some one have any ideas, thanks!
1 answers

This forum post might help