With my SGS2 and 2.9.7 it's slow in refresing but eventually the widgets updates himself.
The problem is: eventually. It's not rare that I see past events on the screen, even hours after they were finished... but eventually they flush away.
No, I'm not kidding you :)
Just now I deleted an event and few minutes later the widget updated itself on my device. I cannot think of anything else to try, sorry.
Version: MIUI 2.4.20 (and all ICS before this one)
Terminal: Samsung Galaxy S2
I normally install the ItalianLanguagePack, but this problem is present too withouth the language pack.
Problem: the "Calendar" widget doesn't update the events. To do so, I have to remove from the launcher and put...