System Workbench for STM32

Hi,
I managed to compile the Cube exmaple projects this way:
- Download Cube library via AC6 utilty
- Download it again as a standalone package from ST website
- Change workspace to whatever demo directory in standalone package and import project

This works fine with all sample I tried But I have a problem with the "Demonstations project" 😕 : it compiles with no errors and the first touchscreen calibration routine is ok but then freezes at home menu (no reactions from the screen). however LEDs are blinking meaning thet the program it self is running.
PS: teh same project was compiled with other tools and it works fine.

Any suggestions ?
Regards,
Atef