while browsing my posts I saw that sometimes quoted text is not displayed, yet there is an empty space in the corresponding area, I think the quote block is floating somewhere, if I inspect the document I can see the quoted text, here are few screenshots:
See how left side message has quoted text, and right text is missing? I also zoomed down to 33% but nothing changed.
Google Chrome: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36
Works fine on Mozilla Firefox and Opera.