Cannot debug on Symbian^3 device

Starting a debug session will result in no information being shown and no breakpoints to be respected.

Getting information from threads returns: "Disassembler failed: Reply contains invalid hex digit xxx".

Steps to reproduce:
Start a new project in Qt Creator.
Insert a breakpoint somewhere in main.cpp.
Build and deploy the application to a Symbian^3 device without changing any code.
Attempt to debug.

Debugger log output attached.

Tested with Qt Creator 2.3.1 and the latest nightly build, same problem.

Side note: If QML debugging is enabled, the debugger will throw the error that the application isn't ready for QML/JS debugging and exits.
This has been mentioned on other bug reports.