Using Doit for Android 4.4.4 on Android 5.5, if I view my Inbox, touching Today appears to change views, but it's my Inbox again. If I visit a different time view, such as Tomorrow, and then touch Today, it navigates properly to Today. I have not been able to navigate successfully from my Inbox to Today in at least three or four days since I updated to Android 5.5. This was not a problem prior to the OS update.