unfortunately there's a rendering problem with the new version. I have a grid and a pane which are rendered only in some cases. When there are rendered once they don't disappear anymore in the cases they should. I checked the getter. It returns "false".
In some cases you can see the grid but with an empty bar in the middle. I will send you a picture of it.
...can reproduce. Only occurs (at least in my scenario) if page is explicitly reloaded. Explicitly reloading happens e.g. if changing the look and feel or the sizing factor. Will provide a solution short term...