Hello angelus1969.
As you’ve verified, version 4.2 doesn’t support the mouse correctly. We’ve worked on Qt libs to add the missing support and the only problems left are related to the middle button press and 3rd button mouse emulation, both not working correctly because of the way Android handles those events. Nevertheless we’ve decided to release this new version since it is a big improvement.
Currently we’re in pre-release phase and as soon as stores will approve our version (I hope in a bunch of days), we’ll release it officially.