Retested tablet Nexus 10 (4.4.2) with Neutron and no sound through E18. I bought and installed USB APP and (as with the trial version), E18 does fine. But you have to be careful about your procedure: USB APP stopped, connection, E18 switch on and USB APP launch.
On the contrary, no progress on my Android phone (4.1.2). USB APP is not more working than Neutron; no connection (Nexus Media Importer already removed), E18 is not recognized.