Ext windows widgets not showing on top

Newly created ExtGWT windows widgets are not showing on top of SmartGWT ones, when calling from the SmartGWT one.

When I create and show() an instance of an ExtGWT window widget from a SmartGWT window widget, the ExtGWT window shows behind the SmartGWT one.

Is there any known workaround for this, or should I just migrate the window to SmartGWT?

There is no support for mixing the two APIs.