To replicate, deploy app to freshly booted device or AVD having an empty clipboard, where app calls QC.mimeData() on startup.
The documentation seems to imply it should return a pointer to a QMimeData instance (an empty one.)
The code in qandroidplatformclipboard.cpp contains 'return 0;'. This code seems inconsistent with iOS code. The behaviour probably is inconsistent with desktop and iOS.
This earlier Russian post discovered this but didn't report it? http://www.linux.org.ru/forum/development/10018398
Easy to work around.