Only happens when I try to preview. I can publish and run the screen fine.
ASPx looks OK and there is no ColumnSpan property being set anywhere that I can see.
<%@ Page Language="C#" MasterPageFile="~/MasterPages/FormDetail.master" AutoEventWireup="true" ValidateRequest="false" CodeFile="AP504520.aspx.cs" Inherits="Page_AP504520" Title="Untitled Page" %>
<%@ MasterType VirtualPath="~/MasterPages/FormDetail.master" %>
<asp:Content ID="cont1" ContentPlaceHolderID="phDS" Runat="Server">
<px:PXDataSource ID="ds" runat="server" Visible="True" Width="100%"
TypeName="APCustomizations.APStaleDateLettersProcess"
PrimaryView="Filter"
>
<CallbackCommands>
</CallbackCommands>
</px:PXDataSource>
</asp:Content>
<asp:Content ID="cont2" ContentPlaceHolderID="phF" Runat="Server">
<px:PXFormView ID="form" runat="server" DataSourceID="ds" DataMember="Filter" Width="100%" Height="100px" AllowAutoHide="false">
<Template>
<px:PXLayoutRule ID="PXLayoutRule1" runat="server" StartRow="True"></px:PXLayoutRule>
<px:PXLayoutRule runat="server" ID="CstPXLayoutRule8" StartColumn="True" ></px:PXLayoutRule>
<px:PXDateTimeEdit CommitChanges="True" runat="server" ID="CstPXDateTimeEdit2" DataField="StartDate" ></px:PXDateTimeEdit>
<px:PXLayoutRule runat="server" ID="CstPXLayoutRule9" StartColumn="True" ></px:PXLayoutRule>
<px:PXDateTimeEdit CommitChanges="True" runat="server" ID="CstPXDateTimeEdit1" DataField="EndDate" ></px:PXDateTimeEdit></Template>
</px:PXFormView>
</asp:Content>
<asp:Content ID="cont3" ContentPlaceHolderID="phG" Runat="Server">
<px:PXGrid ID="grid" runat="server" DataSourceID="ds" Width="100%" Height="150px" SkinID="Inquire" AllowAutoHide="false">
<Levels>
<px:PXGridLevel DataMember="DetailsView">
<Columns>
<px:PXGridColumn DataField="Selected" Width="60" AllowCheckAll="True" Type="CheckBox" ></px:PXGridColumn>
<px:PXGridColumn LinkCommand="viewDocument" DataField="RefNbr" Width="140" ></px:PXGridColumn>
<px:PXGridColumn DataField="DocType" Width="70" ></px:PXGridColumn>
<px:PXGridColumn DataField="Status" Width="70" ></px:PXGridColumn>
<px:PXGridColumn DataField="ExtRefNbr" Width="180" ></px:PXGridColumn>
<px:PXGridColumn DataField="AdjDate" Width="90" ></px:PXGridColumn>
<px:PXGridColumn DataField="UsrOrigCheckNo" Width="180" ></px:PXGridColumn>
<px:PXGridColumn DataField="UsrStaleDatedOn" Width="90" ></px:PXGridColumn>
<px:PXGridColumn DataField="UsrStaleDatedByDisplay" Width="280" ></px:PXGridColumn>
<px:PXGridColumn DataField="VendorID" Width="140" ></px:PXGridColumn>
<px:PXGridColumn DataField="APContact__FullName" Width="280" ></px:PXGridColumn>
<px:PXGridColumn DataField="CuryOrigDocAmt" Width="100" ></px:PXGridColumn></Columns>
</px:PXGridLevel>
</Levels>
<AutoSize Container="Window" Enabled="True" MinHeight="150" ></AutoSize>
<ActionBar >
</ActionBar>
</px:PXGrid>
</asp:Content>