Do you have a URL where you can reliably reproduce this problem? If so, please share - it'd be helpful if we could try it on a few other platforms to see if it's an issue (same problem or other weird behaviour) using Chrome for Windows or testing with Chromium.
You may want to also disable all extensions for a while - I'd be more suspicious of an extension bug than the main browser, since Chrome is almost certainly better tested than extensions. Some extensions, like ad blockers, modify the markup before Chrome can render them. That could be the culprit.
If this is still happening with no extensions enabled, open the developer console (on Windows the shortcut is CTRL-SHIFT-I). Some clues that something problematic has been received may include a red icon with a number beside it in the bottom-right corner (JavaScript error(s)), or an empty or near-empty pane showing the HTML markup in the leftmost tab (I have no full browser accessible - sorry, I can't get the name of the tab).
Now that I think of it, I think I've seen this behaviour a couple of times in Chrome for Windows. a refresh always fixed it, but it happened so rarely I never investigated.