I've seened to stumble across the problem. The stored procedure for netschedulerlist was wrong.
SELECT CONVERT(NVARCHAR(40),pkID) AS pkID,Name,CONVERT(INT,Enabled) AS Enabled,LastExec,LastStatus,LastText,NextExec,[DatePart],Interval,MethodName,CONVERT(INT,fStatic) AS fStatic,TypeName,AssemblyName,InstanceData, IsRunning, CurrentStatusMessage
FROM tblScheduledItem
ORDER BY Name ASC
I had to change it to this.
Select CONVERT(NVARCHAR(40), pkID) AS pkID, Name, CONVERT(INT,Enabled) AS Enabled, LastExec, LastStatus, LastText, NextExec,[DatePart], Interval, MethodName, CONVERT(INT,fStatic) AS fStatic, TypeName, AssemblyName, InstanceData, IsRunning, CurrentStatusMessage, DateDiff(second,LastPing,GetDate()) as SecondsAfterLastPing
FROM tblScheduledItem
ORDER BY Name ASC
In case anyone else runs across the problem