I have the same issue @ Xubuntu 14.04.1 64-bit.
I can't copy file to LG-P705 (connected via MTP), copying hangs and after I get "libmtp error: Could not send object". But I can create folders.
Also sometimes Xubuntu file manager hanfs when device is connected via MTP.
Version of libmtp is 1.1.6-20-g1b9f164-1ubuntu2.
I have the same issue @ Xubuntu 14.04.1 64-bit.
I can't copy file to LG-P705 (connected via MTP), copying hangs and after I get "libmtp error: Could not send object".
But I can create folders.
Also sometimes Xubuntu file manager hanfs when device is connected via MTP.
Version of libmtp is 1.1.6-20- g1b9f164- 1ubuntu2.