I'm unable to add text to any project. It shows the flashing cursor but no text appears. This is happening on new projects and old ones that I have tried to edit.
As with all things webased, have you tried the usual clearing cache and cookies, closing and restarting the browser, and signing in again?
What browser are you using? I'm currently using Chrome and can't reproduce the error, so it needs investigating further if you're experiencing a bug or it's a browser problem.