The issue is not reproducible with the following setup: <asp:MultiView ID="TileMultiView" runat="server" ActiveViewIndex="0"> <asp:View ID="HomeTileView" runat="server"> <uc1:HomeTileControl runat="server" ID="HomeTileControl" /> </asp:View> <asp:View ID="View1" runat="server"> <uc1:AccountsTileControl runat="server" ID="AccountsTileControl" /> </asp:View> </asp:MultiView> If there are more than one persistent managers on the page they should have unique UniqueKey properties.