Bug with gwt google map

[bebo]

With the recent night builds, an annoying and misterious problem showed up in my application with the official gwt google map library.
After showing and closing an InfoWindow on a MapWidget, some smartGWT components stop to receive mouse clicks.
Before showing the InfoWindow, and during the time InfoWindow is visible, the components work normally.
Is it some known bug? A test case can maybe be helpful?

Thx