I've just had another problem that I think is related to this one. I'm calling it a homescreen-persistence problem. I move two widgets from homescreen 6 to homescreen 5 (Pandora and Play Music). The widgets themselves moved without issue and were no longer visible on page 6.
I rebooted my phone and the widgets are now on both homescreens. I also just remembered, I put the 4x3 calendar widget in place of those two music widgets on page 6. The calendar widget is gone, and as stated, I have a double occurrence of the music widgets.
Another issue that may not be the same underlying issue (homescreen persistence) deals with the S-Note app (widget). As you make action memos, they are saved on the widget and stacked on on top of the other. Yesterday, I had deleted all my action memos as I had finished with them all. A few minutes later, I made another one, and the action memo that appeared in the widget was one I had deleted. When I clicked on it, it did lead to the correct memo, but the displayed memo (icon) was incorrect.