Debugger bug

[u2227]

I found that break points work as you set them. They keep working next time when you start the program, but sometime they simply stop working, and you have to delete every break point and set them again. I cannot reproduce it the way it always behave the same. But in general the breakpoint "survives" three-five program starts, then although you can still see it, it never fires.
I thought it has to do with code editing, or with recompilation, but no, it just happens "sometimes" with no particular logic.