This is the same problem explained by legnanimassimo, but it is not solved.
Using Codewarrior 11.1 (and also older version), in some installation happens the following very annoying problem:
every time I re-compile my software, if I leave the view related to Global Variables active, when the compilation ends, the global variables previously inserted, are repeated at each compilation and after a few times it is no longer possible to display their value, they must be deleted and entered again.
A workaround is to change the active display from 'Variables' to any other one (Breakpoint .. etc.) before closing the debug interface.
It seems a storage problem of the variables on debug perspective.

I made a fresh install, in a new workspace, with a new design taken from "Import a sample project" on two PCs.
This problem is very annoying when debugging the software.
Thank you