if a list-image is implemented via css, the images are not shown if you load the list on a page, where the list with the images is displayed directly in the window-range you see ... only if you scroll down (or up) and move the list with the images out of the window-range, and scroll back, the images are displayed. Alternative they're shown if you mark the text with the mouse manually ...
Thanks for the bug report. If you haven't done so yet, please download a WebKit nightly build from <http://nightly.webkit.org/> and see if the bug is fixed in the nightly build. If it is not, please attach a test case or a link to a web page that demonstrates the problem.
A year without update any URL or test case to show the problem. I mark this bug as INVALID. Feel free to reopen it if you upload test case or attach URL with a problem appearing in the latest Webkit version.