Package breaks loading of other libraries

[Tomislav Lugarić]

I am developing a GUI app heavily based on QT and QtitanRibbon (www.devamchines.com). I am bundling Qt 4.8.6 and QtitanRibbon shared objects with the application and using RUNPATH. When I install the application on any machine that has a different version of Qt, starting of the application fails with the message "Cannot mix incompatible QT library (0x40801) with this version (0x40806)"
The problem is gone if I uninstall appmenu-qt using apt-get, and returns after I install it back. it also disappears if I remove " /usr/lib/x86_64-linux-gnu/qt4/plugins/menubar/libappmenu-qt.so"
I have observed this on both Ubuntu 12.04 and 13.10.

I have contacted developers of QtitanRibbon as well, but as I am unsure what exactly causes the problem I am also leaving a report here.