I am having an issue where all webkit browsers, including safari, chrome, and fluid app. I am running updated os x mavericks. The web inspector sometimes will not show all elements. I am viewing a local host to develop a site, or remote sites, so I am often refreshing. The caret to expand parent/child items is often times not functional, and child items do not appear or are missing entirely. Also apps are unresponsive when I inspect element. List does populate correctly. Is anyone else having this issue? Everything should be up to date on my system. I need to restart the apps to get them to operate normally. Sometimes this doesn't work.