Today home screen no longer showing all calendars.
 

I have a Curve 8330 running OS 4.5.0.186. This may be a bit long-winded, but I want to include all the details I can up front...

I recently setup a second calendar (by creating a dummy email address) so that I could have certain recurring events show in a different colour in the calendar. This worked great for me. I then wanted to return to a Today theme to see upcoming calendar entries and messages, so I downloaded and installed Carbon Alloy TODAY - one of the few I could find that did not have a "Missed Calls" section and only showed Messages and Calendar. Also mostly good.

At first, everything was good - the home screen showed upcoming entries from BOTH calendars. But then I connected the phone to do a backup, and sync to Outlook - which I only do for easy editing of some notes and address book entries.

After I did this, the home screen stopped showing entries from the second calendar. The calendar app itself shows everything fine, the second calendar still exists etc, but the entries no longer shows up on the home screen. I tried switching to the default BB Dimension Today theme, and I get the same result there.

What did I do and how can I fix it?