Seedbucket Compressing Fails

With the new Seedbucket I try and compress files in a torrent download using Zip. The result is either a corrupt zipped file, &/or a zipped file of size 0 bytes (but which can be downloaded using ruTorrent File Manager), &/or duplicate entries in the Seedbucket file list but which are missing in the ruTorrent list. Basically Seedbucket is unusable. Not good.