As mentioned earlier (WiFi Direct, double the work – part 2, https://wordpress.com/post/39070225/733/ and WiFi Direct, double the work, https://wordpress.com/post/39070225/731/), I am not able to use WiFi Direct to send data between two mobiles – one mobile has Android 4.4.2 and the other has Android 4.4.4. The problem seems to be with the Android version and not with the handsets, as my tablet with 4.1.2 is still able to send files to the Android 4.4.2 mobile.
This non-transfer has been tried out with other band mobiles as well, namely the Nexus 5 (with Lollipop) and the Moto X (with Android 4.4.4). The problem does not seem to be vendor specific.
So, once again, a great feature has been removed from the mobile.