An error similar to the following may be seen in the a.log files:
Circular reference detected during delta filter membership update. Filter memberships may be not be updated correctly.
A filter contains a circular reference in a sub filter. Guid of filter where discovered = b57dfb8b-eb5a-450d-b52e-30d2611ce12c.
Parent list for this filter: b57dfb8b-eb5a-450d-b52e-30d2611ce12c
ITMS 8.x
There is a circular reference in a filter or set of filters.
Scenario 1:
A filter references it self as a filter to be based upon.
Scenario 2:
A chain of filters has a reference back to one of its members.
In the SMP log viewer make sure you have the database connectivity set up as follows:
In the Log Viewer's detail pane click on the two GUIDS as described here:
Scenario 1:
In this case they will be the same filter. To resolve it do the following:
Scenario 2:
This may take some digging depending on how many filters are in the chain. To resolve this do the following:
NOTE: The follow KB contains a FIND GUID query that can also help identify the filter associated with the GUID: