Hi Piotr,
yesterday I saw a strange behaviour with controls that compose list and Item renderer changes done recently, but was in ComboBox that can configure an Item renderer and then pass to the ComboBoxPopUp to its List internal component (so we can have custom renderers in ComboBox). In this case rowCount and rowHeight is not working as expected, sin ce there initializer is not used in ComboBox internal list, while in VirtualComboBox is working ok. I trace the problem to Mappers not update right when the renderers refactor was done. So while the mapper in Basic adds initializer, in Jewel is not doing that. I could not invest more time since I was in the middle of other fixes, and still had the width/height issues in DG, so could not see exactly what's the problem. I want to see if now that this refactor is done is safe to remove jewel mappers to user basic versions, but a quick test reveal that is not direct. In resume, about your problem, I think it could be something like the one with ComboBox, but need to have the time to reach to that point, hopefully soon. Thanks
