While in a debug session, CTRL + C stops working after using any of the debug commands, like "Next" or "Continue".
Giving an example of error scenario:
1 - Place a breakpoint somewhere in the code;
2 - Start a debug session;
3 - Click in the "Next" command icon;
4 - Select some text in the code editor and try to copy with CTRL + C or Edit -> Copy, content is not copied;
5 - Deselect the text, select again and try to copy again, now content is copied;
6 - Repeat from step 3, error will happen every time you advance in code debugging;
This behavior is quite annoying while you are debugging something and need to copy variable names to inspect in the "Data" window.
Genero Studio Version 2.50.20 build-136704
Windows 7 Professional x64 Service Pack 1