Filename Encoding on ZIP download

when downloading several files from phone to computer, airdroid collates them into a ZIP and the browser will download a single file. however, for filenames that are in east asian languages (unicode/utf-8), the names in the ZIP become garbled and do not preserve the original east asian language file name.
is that an issue with the unzipping process or is it due to the way the files are packaged into the ZIP?

i have a download a large quantity of files with unicode filenames regularly, so appreciate any pointers here

Thanks for your feedback.
Would you please tell us what OS do you use? This issue might be caused by using Linux or Mac. And we will make improvement of this in next update.