Got 10 or so users using Google Chrome on different computers saying that embedded content (images, videos) doesn't display for them. It's sometimes, but not always, resolved by refreshing. Doesn't appear to be happening in any other browser.
Can you post some links of where the problem occurs, or PM them to me if you don't want to post them publicly.
Is it when logged in, logged out or both?
Do any of them have other browsers installed and can check with those so we can narrow the problem down?
I have noticed this a couple times, though I think it is a Chrome bug (as combined with their changes that break wmode). Unfortunately, as this is stuff being handed off to the internals of the browser, there's not a lot we can really do.