If you can not see the events of the channel calendar, then please follow these steps:

1. Close just in engine and interface
2. Open the Calendar application
3. Delete all just in related calendar (export your schedule if needed before)
4. Close the Calendar application
5. Open the just in engine application and go to the preferences
6. Open the Calendar application again

You should see new just in calendars now. If it is still not working, let us know.