Roland, There seems to be a bug concerning this in the latest release. I will have it fixed in the next release. If you are use the source code than you can fix it by adding this line in the TocMapLayerItem.as in the createTocLayer function. private static function createTocLayer(parentItem:TocItem, layerInfo:LayerInfo, layerInfos:Array, visibleLayers:Array, tlayer:Layer, excludeLayers:ArrayCollection, iscollapsed:Boolean, isdisableZoomTo:Boolean):TocLayerInfoItem
{
const item:TocLayerInfoItem = new TocLayerInfoItem(parentItem, layerInfo, visibleLayers);
item.scroller = parentItem.scroller;
item.tocMinWidth = parentItem.tocMinWidth;
item.disableZoomTo = isdisableZoomTo;
item.collapsed = iscollapsed;