Using FV3.0 and the out of box Legend widget. In fact, I just imported new project and ran with the existing layer/config and seems to be working fine. However, the existing config loads type="tiled" and type="feature". If I load ANY of them as type="dynamic", then the Legend widget will display them even if visible="false". The only way to remove them from the legend is to turn them on (check them in mapswitcher), then back off, and this will remove it from the legend.
Anyone else have this issue and know of a "fix" for it?