Perhaps I’m the only one seeing this, but I’ve reported it as a bug before but it was never resolved.
Basically my badge icon on the app icon doesn’t update unless I quit/reopen OF. It doesn’t seem to happen every day, but most of the time I’ll glance down thinking I’ve done everything not realizing that there are still tasks, and the app icon hasn’t updated.
Here’s an example (a screenshot from my last bugreport, one year ago):
You can see two items due, but nothing on the app icon. Once I closed and repoened the app I then saw this: