Delphi XE2 Debugger not working properly

Question

since a few days, Delphi xe2 debugger stopped working like should be. Let me explain, I set a breakpoint in editor and hit F9, the ide stops on breakpoint as should be, everything ok. But when I hit F7 or F8 the line or the execution does not advance. I hit it several times, and nothing. If I set a breakpoint, lets say, x lines ahead in the same procedure/method and hit F9 it stops in the new breakpoint as usual, but hitting f7 or f8 not work, as before. All debug properties are set it the project configuration, as must be set.

Is a IDE thing, because I started a new empty project, just 1 form, a button and 3 Showmessages in the Onclick event of the button. No recursion, no events firing, nothing.

I've unistalled Ddevextensions, idefixpack, gexperts and cnwizards and the problem persists. The last thing is unistalling delphi and reinstalling again, but is a last resort. Expect to be clear in my explanation, English is not my primary language. Greetings from Isla de Margarita, Venezuela

Answer 1

Remove all DCU's from project directory, also remove .identcache, MAP files. Rebuild project, than compile it. Also check, remote debug symbols( .rsm) must be disabled(if you don't use it).

Answer 2

Nothing of the above worked for me. The simplest way I've found is to copy the file source code from Delphi IDE to the notepad and then copy it again from the notepad to the Delphi IDE and all worked fine for me. it may be some problematic hidden characters.