I've tried with and without live edit turned on. I have the jetbrains ide support extension in my chrome browser, but the general flow seems to work better without it. But using it doesn't help as I still see old files sometimes.
What should be displayed is the current version at the breakpoint
What is displayed is a view of the local apache server based file, an old version
File > Reload all from disk doesn't help
Run > Update application (live edit) doesn't help