The Policy Server executes queries against the Session Store using Page Controls.
The results are limited to 100 records by default.
The Page Control is configured using the "MaintenanceQueryRowLimit" value in the Registry.
When the "MaintenanceQueryRowLimit" value is modified to any other value, it begins using a value of "1".
Upgrade the Policy Server to version 12.8SP3 and higher version, to benefit from fix DE403909 (1).