Another issue I've noticed in the last few days (full desktop version of FT, editor setting is "Enhanced Interface - Full CK Editing") is that if you edit a post and save, then navigating away from the page brings up a "Are you sure you want to leave this page? Changes you made are not saved" type of dialog, even though the changes have in fact been saved. (This only seems to happen if the edit makes an actual change to the post -- if you simply click edit and then save without changing any non-whitespace text then the effect does not occur.)