Run following query, change NodeID and poller names in WHERE condition. What is the result?
SELECT cpa.AssignmentName ,cps.Rate, cps.RawStatus, cps.Status, cps.RowID, cps.Total, cpa.NodeID, cp.PollInterval, cp.Formula, cp.IncludeHistoricStatistics
FROM CustomPollers cp JOIN CustomPollerAssignment cpa ON (cp.CustomPollerID=cpa.CustomPollerID)
JOIN CustomPollerStatus cps ON (cpa.CustomPollerAssignmentID=cps.CustomPollerAssignmentID)
WHERE cp.UniqueName in ('poller1','poller2','poller3','transfpoller')
AND cpa.NodeID=1