The changes in the hotfix will query the database in the background thread to check if the AX created tables are in the TempDb. If the table is not present then clean up the pool.
By default, this check is disabled and it can be enabled by setting the synctempdbpoolfrequency string registry value in the AOS registry settings. The value to be set determines the frequency witch which the AOS will query the DB, is no value is set then the AOS will not do this check.
The synctempdbpoolfrequency registry value is setup under the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dynamics Server\6.0\01\DAX SE Development registry.
This will do an additional roundtrip to the database so it is recommended that it should not be set to a very low value (<>