From time to time my debbuger doesn't stop at breakpoints.
I have to try many times or restart my PHPEd and DBG Listener.
(of course my breakpoint is in place where it's always accessible - not in "if" statement)

Something simmilar happens to Profiler ... it just shows empty window ... with no entries.

I feel really tired, when I have to debug or profile my app.

Any ideas what could be wrong?

Best regards
Jacek

Of forgot to say that I have PHPEd 4.6.2 (build 4628) and PHP 5.1.4 with Apache 1.3.x

I too am getting this issue, seems as though most breakpoints I set do not get hit, I can step into the file and get the point where the breakpoint is but it does not stop on a breakpoint of its own accord.

I'm running 4.6.2 (Build 4632)

I'd recommend you to check your servers if they are stable enough.
Take a look at error_logs if there are any fatal errors like "exit signal" blah blah blah:
grep -Fi "exit signal" /var/log/httpd/error_log

No errors in my logs, interestingly enough debugbreak() causes it to break just fine.

Get phpinfo() at the time when you suppose breakpoints to trigger but they don't and submit it there.

Regarding debugbreak - there is a BIG difference. Unlike breakpoints, debugbreak runs debug session if it is not running. To have breakpoints to work you always need debug session in effect.

That's probably what was going on then, I did not have debug session checked.

I did not mean debug session continuation that is turned on by debug session checkbox. It may help but in general what you need is debugging itself. If you ran without debugger, breakpoints won't work.

Yeah I was running it with the debugger but not with debug sessions.

check all occurences of DBGSESSID in phpinfo() output when you think breakpoints are supposed to trigger but they don't