Bug: Export files on Anroid eg. to Total Commander fails

I try to export the JPGs in my Android tablet and this fails all the time. Fist of all I can not take more than 400 pictures at once, Mylio then just crashes. An option to export originals when they are on the device seem to be completely missing. Sending them via bluetooth to another device seems to work (slow), Currently send 155 files at once (will take some time for over 2000).