By default the title bar of a Terminal window will show the user, host and current directory, and this normally updates immediately once these change. Currently when I cd the directory on the title bar does not change until I click elsewhere so that the Terminal window loses focus and then click back on it to bring focus back. This matters to me because I like to keep the prompt as just "$" and get the user/host/directory info from the title bar when it's needed.
The only change I've made that seems like it might be relevant is that it started to occur right after I removed the indicator-appmenu package so that windows would have their own menus. However, reinstalling this package did not solve the problem.