Hidden circular links
As a result of a merge operation, circular links might occur in the Information Store. The Information Store does not support circular links.
If data in the staging table causes existing records that are linked to each other in the Information Store to merge, the link becomes circular. As part of this operation, the existing link record is hidden in the Information Store. When a link record is hidden in the Information Store, analysts are unable to discover the link in search results and analysis.
A hidden link is revealed when the merged record at its ends is unmerged. After a hidden link is revealed, analysts are able to discover the link in search results and analysis.