Please verify if you have the latest version of @Voice app from Google Play store (now ver. 19.2.5 in general release, or 19.3.0 in beta-test). If the problem still happens there, please try to isolate the exact steps to reproduce it, and tell me to which list you add the files, and how many, approximately, of the files are on that list. I tested this issue many times and cannot reproduce it, so if you would discover the exact steps that would let me reproduce the problem, I would greatly appreciate this, and probably could fix the problem at once...